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Informatica PowerCenter 8Level I Developer

Student GuideVersion - PC8LID 20060428

Informatica PowerCenter 8 Level I Developer Student GuideVersion 8.1April 2006

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Table of Contents

List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xixAbout This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xx

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xx

Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xx

Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xx

Other Informatica Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

Obtaining Informatica Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

Visiting Informatica Customer Portal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

Visiting the Informatica Web Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

Visiting the Informatica Developer Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

Visiting the Informatica Knowledge Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

Obtaining Informatica Professional Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

Providing Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

Obtaining Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

Unit 1: Data Integration Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Lesson 1-1. Introducing Informatica . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Lesson 1-2. Data Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Lesson 1-3. Mappings and Transformations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Mappings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Transformations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Lesson 1-4. Tasks and Workflows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Workflows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Lesson 1-5. Metadata . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Unit 2: PowerCenter Components and User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Lesson 2-1. PowerCenter Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Lesson 2-2. PowerCenter Client Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Designer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Workflow Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Unit 2 Lab: Using the Designer and Workflow Manager . . . . . . . . . . . . . . . . . . . . . . . . . . 17Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Step 1: Launch the Designer and Log Into the Repository . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Step 2: Navigate Folders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Table of ContentsInformatica PowerCenter 8 Level I Developer iii

Step 3: Navigating the Designer Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Step 4: Create and Save Shortcuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Step 5: Launch the Workflow Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Step 6: Navigating the Workflow Manager Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Step 7: Workflow Manager Task Toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Step 8: Database Connection Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Unit 3: Source Qualifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Lesson 3-1. Source Qualifier Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Source Qualifier Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Datatype Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Lesson 3-2. Velocity Methodology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Lab Project . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Architecture and Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Unit 3 Lab A: Load Payment Staging Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Section 1: Pass-Through Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Step 1: Launch the Designer and Review the Source and Target Definitions . . . . . . . . . . . . . . 38

Step 2: Create a Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Step 3: Create a Workflow and a Session Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Step 4: Run the Workflow and Monitor the Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Data Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Lesson 3-3. Source Qualifier Joins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Unit 3 Lab B: Load Product Staging Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Section 2: Homogeneous Join . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Step 1: Import the Source Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Step 2: Import the Relational Target Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Step 3: Create the Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Step 4: Create the Session and Workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Step 5: Run the Workflow and Monitor the Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Lesson 3-4. Source Pipelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Unit 3 Lab C: Load Dealership and Promotions Staging Table . . . . . . . . . . . . . . . . . . . . 59Section 3: Two Pipeline Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Step 1: Import the Source Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Step 2: Import the Target Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Step 3: Create the Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62Table of Contentsiv Informatica PowerCenter 8 Level I Developer

Step 4: Create and Run the Workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Unit 4: Expression, Filter, File Lists, and Workflow Scheduler . . . . . . . . . . . . . . . . . . . . 67Lesson 4-1. Expression Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Lesson 4-2. Filter Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Lesson 4-3. File Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Lesson 4-4. Workflow Scheduler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Run Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Unit 4 Lab: Load the Customer Staging Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Step 1: Create a Flat File Source Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Step 2: Create a Relational Target Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Step 3: Create a Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Step 4: Create a Filter Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Step 5: Create an Expression Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Step 6: Create and Run the Workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Step 7: Schedule a Workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Unit 5: Joins, Features and Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97Lesson 5-1. Joiner Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Joiner Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Join Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Joiner Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Lesson 5-2. Shortcuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Unit 5 Lab A: Load Sales Transaction Staging Table . . . . . . . . . . . . . . . . . . . . . . . . . . . 103Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Step 1: Create a Flat File Source Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Step 2: Create a Relational Source Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Step 3: Create a Relational Target Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Step 4: Create a Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Step 5: Create a Joiner Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Step 6: Link the Target Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Step 7: Create a Workflow and Session Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Step 8: Start the Workflow and View Results in the Workflow Monitor . . . . . . . . . . . . . . . . 111

Data Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Unit 5 Lab B: Features and Techniques I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Open a Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116Table of ContentsInformatica PowerCenter 8 Level I Developer v

Feature 1: Auto Arrange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Feature 2: Remove Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Feature 3: Revert to Saved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Feature 4: Link Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Feature 5: Propagating Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Feature 6: Autolink by Name and Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Feature 7: Moving Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Feature 8: Shortcut to Port Editing from Normal View . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Feature 9: Create Transformation Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Feature 10: Scale-to-Fit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Feature 11: Designer Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Feature 12: Object Shortcuts and Copies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Feature 13: Copy Objects Within and Between Mappings . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Unit 6: Lookups and Reusable Transformations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131Lesson 6-1. Lookup Transformation (Connected) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Lesson 6-2. Reusable Transformations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Unit 6 Lab A: Load Employee Staging Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142



Step 3: Step Three: Create a Reusable Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142


Step 5: Create a Lookup Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Step 6: Add a Reusable Expression Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Step 7: Link Transformations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Step 8: Create and Run the Workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Unit 6 Lab B: Load Date Staging Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157




Step 4: Create a Workflow and a Session Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Step 5: Run the Workflow and Monitor the Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Data Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

Unit 7: Debugger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163Lesson 7-1. Debugging Mappings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

Unit 7 Lab: Using the Debugger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167Table of Contentsvi Informatica PowerCenter 8 Level I Developer

Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Step 1: Copy and Inspect the Debug Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Step 2: Step Through the Debug Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Step 3: Use the Debugger to Locate the Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

Step 4: Fix the Error and Confirm the Data is Correct . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

Unit 8: Sequence Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177Lesson 8-1. Sequence Generator Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Unit 8 Lab: Load Date Dimension Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

Step 1: Create a Shortcut to a Shared Relational Source Table . . . . . . . . . . . . . . . . . . . . . . . 185

Step 2: Create a Shortcut to a Shared Relational Target Table . . . . . . . . . . . . . . . . . . . . . . . 185


Step 4: Create a Sequence Generator Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

Step 5: Link the Target Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187


Data Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

Unit 9: Lookup Caching, More Features and Techniques. . . . . . . . . . . . . . . . . . . . . . . . 191Lesson 9-1. Lookup Caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

Lookup Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

Unit 9 Lab A: Load Promotions Dimension Table (Lookup and Persistent Cache) . . . . 195Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

Step 1: Create a Shortcut to a Shared Relational Source Table . . . . . . . . . . . . . . . . . . . . . . . 198

Step 2: Create a Shortcut to Shared Relational Target Table . . . . . . . . . . . . . . . . . . . . . . . . 198


Step 4: Create Lookups for the Start and Expiry Date Keys . . . . . . . . . . . . . . . . . . . . . . . . . 198


Data Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

Unit 9 Lab B: Features and Techniques II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Open a Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Feature 1: Find in Workspace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Feature 2: View Object Dependencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

Feature 3: Compare Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208

Feature 4: Overview Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

Unit 10: Sorter, Aggregator and Self-Join . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213Lesson 10-1. Sorter Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213Table of ContentsInformatica PowerCenter 8 Level I Developer vii

Sorter Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

Lesson 10-2. Aggregator Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216

Aggregator Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

Lesson 10-3. Active and Passive Transformations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220

Lesson 10-4. Data Concatenation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

Lesson 10-5. Self-Join . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222

Unit 10 Lab: Reload the Employee Staging Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

Step 1: Copy an Existing Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

Step 2: Examine Source Data to Determine a Key for Self-Join . . . . . . . . . . . . . . . . . . . . . . 230

Step 3: Prepare the New Mapping for Modification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

Step 4: Create a Sorter Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

Step 5: Create a Filter Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232

Step 6: Create an Aggregator Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

Step 7: Create a Joiner Transformation for the Self-Join . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

Step 8: Get Salaries from the Lookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234

Step 9: Connect the Joiner and Lookup to the Target . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

Step 10: Create and Run the Workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236

Data Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238

Unit 11: Router, Update Strategy and Overrides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241Lesson 11-1. Router Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241

Lesson 11-2. Update Strategy Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244

Lesson 11-3. Expression Default Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246

Lesson 11-4. Source Qualifier Override . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

Lesson 11-5. Target Override . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249

Lesson 11-6. Session Task Mapping Overrides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250

Unit 11 Lab: Load Employee Dimension Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257

Step 1: Copy the Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257

Step 2: Edit the Expression Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257

Step 3: Create a Router Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258

Step 4: Create an Update Strategy for INSERTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258

Step 5: Create Lookup to DIM_DATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

Step 6: Link upd_INSERTS and lkp_DIM_DATES_INSERTS to Target DIM_EMPLOYEE_INSERTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Step 7: Create an Update Strategy for UPDATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Step 8: Create Second Lookup to DIM_DATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Step 9: Link upd_UPDATES and lkp_DIM_DATES_UPDATES to Target DIM_EMPLOYEE_UPDATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260Table of Contentsviii Informatica PowerCenter 8 Level I Developer

Step 10: Link ERRORS Router Group to DIM_EMPLOYEES_ERR . . . . . . . . . . . . . . . . . . 261

Step 11: Create and Run the Workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

Data Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264

Step 12: Prepare, Run, and Monitor the Second Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264

Unit 12: Dynamic Lookup and Error Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269Lesson 12-1. Dynamic Lookup Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269

Lesson 12-2. Error Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274

Error Log Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275

Log Row Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277

Log Source Row Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277

Unit 12 Lab: Load Customer Dimension Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282

Step 1: Create a Relational Source Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282



Step 4: Create a Lookup Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282

Step 5: Create a Filter Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284

Step 6: Create an Update Strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284


Data Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287

Error Log Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288

Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288

Unit 13: Unconnected Lookup, Parameters and Variables . . . . . . . . . . . . . . . . . . . . . . . 291Lesson 13-1. Unconnected Lookup Transformations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291

Connected versus Unconnected Lookup Transformations . . . . . . . . . . . . . . . . . . . . . . . . . . 294

Joins versus Lookups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295

Lesson 13-2. System Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295

Lesson 13-3. Mapping Parameters and Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297

Unit 13 Lab: Load Sales Fact Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307

Step 1: Create an Internal Relationship Between two Source Tables . . . . . . . . . . . . . . . . . . . 307

Step 2: Create a Mapping Parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307

Step 3: Step Three: Create an Unconnected Lookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308

Step 4: Add Unconnected Lookup Test to Expression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309

Step 5: Create Aggregator Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309


Data Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314Table of ContentsInformatica PowerCenter 8 Level I Developer ix

Unit 14: Mapplets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317Lesson 14-1. Mapplets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

Mapplets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

Mapping Input Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

Mapping Output Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

Unit 14 Lab: Create a Mapplet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326

Step 1: Create the Mapplet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326

Step 2: Add Mapplet to Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327

Unit 15: Mapping Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331Lesson 15-1. Designing Mappings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331

High Level Process Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332

Mapping Specifics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332

Unit 15 Workshop: Load Promotions Daily Aggregate Table . . . . . . . . . . . . . . . . . . . . . 335Workshop Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336

Sources and Targets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336

Mapping Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336

Workflow Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339

Run Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340

Unit 16: Workflow Variables and Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343Lesson 16-1. Link Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343

Lesson 16-2. Workflow Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344

Lesson 16-3. Assignment Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346

Lesson 16-4. Decision Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347

Lesson 16-5. Email Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348

Unit 16 Lab: Load Product Weekly Aggregate Table . . . . . . . . . . . . . . . . . . . . . . . . . . . 351Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353

Step 1: Copy the Mappings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353

Step 2: Copy the Existing Workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353

Step 3: Create the Assignment Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354

Step 4: Create the Decision Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356

Step 5: Create the Session Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356

Step 6: Create the Email Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357

Step 7: Start the Workflow and Monitor the Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358

Unit 17: More Tasks and Reusability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363Lesson 17-1. Event Wait Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363Table of Contentsx Informatica PowerCenter 8 Level I Developer

Pre-Defined Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364

User-Defined Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365

Lesson 17-2. Event Raise Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366

Lesson 17-3. Command Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367

Lesson 17-4. Reusable Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 369

Lesson 17-5. Reusable Session Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 369

Lesson 17-6. Reusable Session Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370

Lesson 17-7. pmcmd Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371

Unit 18: Worklets and More Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373Lesson 18-1. Worklets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373

Lesson 18-2. Timer Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376

Lesson 18-3. Control Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377

Unit 18 Lab: Load Inventory Fact Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383

Step 1: Copy the Mappings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383

Step 2: Create a Worklet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383

Step 3: Create a Session Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383

Step 4: Create a Timer Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383

Step 5: Create an Email Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 384

Step 6: Create a Control Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385

Step 7: Create the Workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386

Step 8: Start the Workflow and Monitor the Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387

Unit 19: Workflow Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389Lesson 19-1. Designing Workflows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389

Workflow Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390

Workflow Specifics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390

Unit 19 Workshop: Load All Staging Tables in Single Workflow . . . . . . . . . . . . . . . . . . . . . . . . 393

Workshop Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393

Unit 20: Beyond This Course. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397Table of ContentsInformatica PowerCenter 8 Level I Developer xi

Table of Contentsxii Informatica PowerCenter 8 Level I Developer

List of Figures

Figure 2-1. Navigator Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 2-2. DEV_SHARED Folder and Subfolders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 2-3. Designer Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 2-4. DEV_SHARED Target subfolder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 2-5. Student folder with new objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 2-6. Application Toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 2-7. Task Toolbar Default Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 2-8. Task Toolbar After Being Moved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 2-9. Relational Connection Browser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 3-1. Normal view of the payment flat file definition displayed in the Source Analyzer . . . . . . . . . . . . . 38

Figure 3-2. Mapping with Source and Target Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Figure 3-3. Normal view of the completed mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Figure 3-4. Completed Session Task Target Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Figure 3-5. Completed Workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Figure 3-6. Successful Run of a Workflow Depicted in the Task View of the Workflow Monitor . . . . . . . . . . 43

Figure 3-7. Properties for the Completed Session Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Figure 3-8. Source/Target Statistics for the Completed Session Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Figure 3-9. Data Preview of the STG_PAYMENT Target Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Figure 3-10. Source Definitions with a PK/FK Relationship Displayed in the Source Analyzer . . . . . . . . . . . . 52

Figure 3-11. Normal View of the Completed Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Figure 3-12. Generated SQL for the m_Stage_Product Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Figure 3-13. Properties of the Completed Session Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Figure 3-14. Source/Target Statistics for the Completed Session Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Figure 3-15. Data Preview of the STG_PRODUCT Target Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Figure 3-16. Normal view of the promotions flat file definition displayed in the Source Analyzer . . . . . . . . . . 62

Figure 3-17. Iconic View of the Completed Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Figure 3-18. Properties of the Completed Session Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63


Figure 3-20. Data Preview of the STG_DEALERSHIP Target Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Figure 3-21. Data Preview of the STG_PROMOTIONS Target Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Figure 4-1. Source Analyzer View of the customer_layout Flat File Definition . . . . . . . . . . . . . . . . . . . . . . . . 82

Figure 4-2. Target Designer View of the STG_CUSTOMERS Table Relational Definition . . . . . . . . . . . . . . . 83

Figure 4-3. Mapping with Source and Target Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Figure 4-4. Mapping with Newly Added Filter Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Figure 4-5. Properties Tab of the Filter Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Figure 4-6. Completed Properties Tab of the Filter Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Figure 4-7. Filter Transformation Linked to the Expression Transformation . . . . . . . . . . . . . . . . . . . . . . . . . 86

Figure 4-9. Iconic View of the Completed Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Figure 4-8. Sample Expression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Figure 4-10. Session Task Source Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Figure 4-11. Contents of the customer_list.txt File List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Figure 4-12. Properties for the Completed Session Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91


Figure 4-14. Data Preview of the STG_CUSTOMERS Target Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Figure 4-15. General Properties for the Workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93List of FiguresInformatica PowerCenter 8 Level I Developer xiii

Figure 4-16. Customized Repeat Selections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Figure 4-17. Completed Schedule Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Figure 5-1. Normal View of the Heterogeneous Sources, Source Qualifiers and Target . . . . . . . . . . . . . . . . . 106

Figure 5-2. Joiner Transformation Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Figure 5-3. Normal View of Heterogeneous Sources Connected to a Joiner Transformation . . . . . . . . . . . . . 107

Figure 5-5. Edit View of the Condition Tab for Joiner Transformation Without a Condition . . . . . . . . . . . . 108

Figure 5-4. Edit View of the Ports Tab for the Joiner Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Figure 5-6. Edit View of the Condition Tab for the Joiner Transformation with Completed Condition . . . . 109

Figure 5-7. Normal View of Completed Mapping Heterogeneous Sources Not Displayed . . . . . . . . . . . . . . . 110

Figure 5-8. Task Details of the Completed Session Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Figure 5-9. Source/Target Statistics for the Session Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Figure 5-10. Data Preview of the STG_TRANSACTIONS Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Figure 5-11. View of an Unorganized Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Figure 5-12. Arranged View of a Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Figure 5-13. Iconic View of an Arranged Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Figure 5-14. Selecting Multiple Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Figure 5-15. Designer Warning Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Figure 5-16. Selecting the forward link path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Figure 5-17. Highlighted forward link path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Figure 5-18. Highlighted link path going forward and backward . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Figure 5-19. Selecting to propagate the attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Figure 5-20. Propagation attribute dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Figure 5-21. Autolink dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Figure 5-22. Defining a prefix in the autolink dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Figure 5-23. Expression after the AGE port has been moved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Figure 5-24. Click and drag method of moving ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Figure 5-25. Creating a transformation using the menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Figure 5-26. Create Transformation dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Figure 5-27. Normal View of the Newly Created Aggregator Transformation . . . . . . . . . . . . . . . . . . . . . . . 125

Figure 5-28. Zoom options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Figure 5-29. Navigator window in the Designer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Figure 6-1. Source Analyzer view of the employees_layout flat file definition . . . . . . . . . . . . . . . . . . . . . . . . 142

Figure 6-2. Target Designer view of the STG_EMPLOYEES relational table definition . . . . . . . . . . . . . . . . 142

Figure 6-3. Transformation edit dialog box showing how to make a transformation reusable . . . . . . . . . . . . 143

Figure 6-4. Question box letting you know the action is irreversible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Figure 6-5. Transformation edit dialog box of a reusable transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Figure 6-6. Navigator window depicting the Transformations node . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

Figure 6-7. Partial mapping with source and target . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

Figure 6-8. Transformation Toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Figure 6-9. Lookup Transformation table location dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Figure 6-10. Dialog box 1 of the 3 step Flat File Import Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Figure 6-11. Normal view of the newly created Lookup Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Figure 6-12. Lookup Transformation condition box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Figure 6-13. Source properties for the employee_list file list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Figure 6-14. Task Details of the completed session run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

Figure 6-15. Source/Target Statistics of the completed session run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

Figure 6-16. Data Preview of the STG_EMPLOYEES target table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Figure 6-17. Mapping with Source and Target definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Figure 6-18. Completed Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

Figure 6-19. Task Details of the completed session run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159List of Figuresxiv Informatica PowerCenter 8 Level I Developer

Figure 6-20. Source/Target Statistics for the session run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

Figure 6-21. Data preview of the STG_DATES table - screen 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

Figure 6-22. Data preview of the STG_DATES table - screen 2 scrolled right . . . . . . . . . . . . . . . . . . . . . . . 161

Figure 7-1. Debug Session creation dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Figure 7-2. Debug Session connections dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Figure 7-3. Designer while running a Debug Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

Figure 7-4. Customize Toolbars Dialog Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

Figure 7-5. Debugger Toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

Figure 8-1. Expanded view of m-DIM_DATES_LOAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

Figure 8-2. Sequence Generator Transformation icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

Figure 8-3. Normal view of the sequence generator NEXTVAL port connected to a target column . . . . . . . . 186

Figure 8-4. Normal view of connected ports to the target . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

Figure 8-5. Task Details of the completed session run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

Figure 8-6. Source/Target statistics for the session run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

Figure 8-7. Data Preview of the DIM_DATES table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

Figure 9-1. m_DIM_PROMOTIONS_LOAD mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

Figure 9-2. m_DIM_DATES from the previous lab that populated the DIM_DATES table . . . . . . . . . . . . . 199

Figure 9-3. Select Lookup Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199

Figure 9-4. Lookup Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

Figure 9-5. m_DIM_POROMOTIONS_LOAD completed mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Figure 9-6. Task Details of the completed session run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

Figure 9-7. Source/Target Statistics of the completed session run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

Figure 9-8. Data Preview of the DIM_PROMOTIONS target table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

Figure 9-9. Preview files created when Persistent Cache is set on Lookup Transformation . . . . . . . . . . . . . . . 203

Figure 9-10. Find in workspace dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Figure 9-11. View Dependencies dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

Figure 9-12. Transformation compare objects dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208

Figure 9-13. Compare Transformation objects Properties details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209

Figure 9-14. Target comparison dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210

Figure 9-15. Column differences between two target tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210

Figure 10-1. m_STG_EMPLOYEES_DEALERSHIP_MGR_LOAD mapping . . . . . . . . . . . . . . . . . . . . . . . 230

Figure 10-2. Employee_central.txt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

Figure 10-3. Renaming an instance of a Reusable Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

Figure 10-4. m_STG_EMPLOYEES_DEALERSHIP_MGR_LOAD after most links removed . . . . . . . . . . . 231

Figure 10-5. Sorter Transformation Icon on Toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

Figure 10-6. Aggregator Transformation Icon on Toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

Figure 10-7. Partial mapping flow depicting the flow from the Sorter to the Filter to the Aggregator. . . . . . . 233

Figure 10-8. Split data stream joined back together . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234

Figure 10-9. Iconic view of the completed self-join mapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236

Figure 10-10. Source properties for the employee_list.txt file list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236


Figure 10-12. Source/Target Statistics of the completed session run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

Figure 10-13. Data preview of the self-join of Managers and Employees in the STG_EMPLOYEES target table - screen 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238

Figure 10-14. Data preview of the STG_EMPLOYEES target table - screen 2 scrolled right . . . . . . . . . . . . . 238

Figure 11-1. Mapping copy Target Dependencies dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257

Figure 11-2. Iconic view of the m_DIM_EMPLOYEES_MAPPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257

Figure 11-3. Router Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258

Figure 11-4. Update Strategy set to INSERT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

Figure 11-5. Iconic view of the completed mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261List of FiguresInformatica PowerCenter 8 Level I Developer xv

Figure 11-6. Source Filter Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262

Figure 11-7. Writers section of Target schema . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263


Figure 11-9. Source/Target Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

Figure 11-10. Data Results for DIM_EMPLOYEES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264

Figure 11-11. Data Results for the Error Flat File (Located on the Machine Hosting the Integration Service Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264

Figure 11-12. Task Details tab results for second run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265

Figure 11-13. Source/Target Statistics for second run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265

Figure 11-14. Data preview showing updates to the target table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266

Figure 12-1. Port tab view of a dynamic Lookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

Figure 12-2. Port to Port Association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284

Figure 12-3. Iconic View of the Completed Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285

Figure 12-4. Error Log Choice Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285

Figure 12-5. Task Details of the Completed Session Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286

Figure 12-6. Source/Target Statistics for the Session Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286

Figure 12-7. Data preview of the DIM_CUSTOMERS table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287

Figure 12-8. Flat file error log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288

Figure 13-1. Source Analyzer view of the STG_TRANSACTIONS and STG_PAYMENT tables . . . . . . . . . . 307

Figure 13-2. Declare Parameters and Variables screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308

Figure 13-3. Parameter entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308

Figure 13-4. Lookup Ports tab showing input, output and return ports checked/unchecked . . . . . . . . . . . . . 309

Figure 13-5. Aggregator ports with Group By ports checked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310

Figure 13-6. Finished Aggregator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311

Figure 13-7. Aggregator to Target Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312

Figure 13-8. Iconic view of the completed mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312


Figure 13-10. Source/Target Statistics of the completed session run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313

Figure 13-11. Data Preview of the FACT_SALES target table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314

Figure 14-1. Mapplet Designer view of mplt_AGG_SALES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326

Figure 14-2. Mapplet Designer view of MPLT_AGG_SALES with Input and Output transformations . . . . . 327

Figure 14-3. Iconic view of the m_FACT_SALES_LOAD_MAPPLET_xx mapping . . . . . . . . . . . . . . . . . . . 328

Figure 15-1. Source table definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336

Figure 15-2. Target table definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336


Figure 15-4. Source/Target Statistics of the completed session run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340

Figure 15-5. Data Preview of the FACT_PROMOTIONS_AGG_DAILY table . . . . . . . . . . . . . . . . . . . . . . 340

Figure 16-1. Workflow variable declaration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354

Figure 16-2. Link condition testing if a session run was successful . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355

Figure 16-3. Assignment Task expression declaration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355

Figure 16-4. Decision Task Expression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356

Figure 16-5. Link condition testing for a Decision Task condition of TRUE . . . . . . . . . . . . . . . . . . . . . . . . 357

Figure 16-6. Email Task Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358

Figure 16-7. Completed Workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358

Figure 16-8. Gantt chart view of the completed workflow run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

Figure 16-9. View Workflow Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

Figure 16-10. Value of the $$WORKFLOW_RUNS variable after first run . . . . . . . . . . . . . . . . . . . . . . . . . 360

Figure 16-11. Gantt chart view of the completed workflow run after the weekly load runs . . . . . . . . . . . . . . 360

Figure 16-12. Task Details of the completed session run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360

Figure 18-1. Timer Task Relative time setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 384List of Figuresxvi Informatica PowerCenter 8 Level I Developer

Figure 18-2. Email Task Properties Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385

Figure 18-3. Control Task Properties Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386

Figure 18-4. Completed Worklet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386

Figure 18-5. Completed Workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387

Figure 18-6. Gantt chart view of the completed workflow run. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387List of FiguresInformatica PowerCenter 8 Level I Developer xvii

List of Figuresxviii Informatica PowerCenter 8 Level I Developer

Preface

Welcome to the PowerCenter 8 Level I Developer course. Data integration is a large undertaking with many potential areas of concern. The PowerCenter infrastructure will greatly assist you in your data integration efforts and alleviate much of your risk. This course will prepare the developers for that challenge by teaching you the most commonly used components of the product.

The students will build a small data warehouse using PowerCenter to extract from source tables and files, transform the data, load it into a staging area and finally into the data warehouse. The instructor will teach you about mappings, transformations, sources, targets, workflows, sessions, workflow tasks, connections and the Velocity methodology. PrefaceInformatica PowerCenter 8 Level I Developer xix

About This GuidePurpose

Welcome to the PowerCenter 8 Level I Developer course. This course is designed to:

Enable you to use PowerCenter developer tools to: Create and debug mappings Create, run, monitor and troubleshoot workflows

Provide experience in designing mappings

AudienceThis course is designed for data integration and data warehousing implementers. You should be familiar with data integration and data warehousing terminology and in using Microsoft Windows.

Document ConventionsThis guide uses the following formatting conventions:

If you see It means Example

> Indicates a submenu to navigate to. Click Repository > Connect.

In this example, you should click the Repository menu or button and choose Connect.

boldfaced text Indicates text you need to type or enter. Click the Rename button and name the new source definition S_EMPLOYEE.

UPPERCASE Database tables and column names are shown in all UPPERCASE.

T_ITEM_SUMMARY

italicized text Indicates a variable you must replace with specific information.

Connect to the Repository using the assigned login_id.

Note: The following paragraph provides additional facts.

Note: You can select multiple objects to import by using the Ctrl key.

Tip: The following paragraph provides suggested uses or a Velocity best practice.

Tip: The m_ prefix for a mapping name is Prefacexx Informatica PowerCenter 8 Level I Developer

Other Informatica ResourcesIn addition to the student guides, Informatica provides these other resources:

Informatica Documentation Informatica Customer Portal Informatica web site Informatica Developer Network Informatica Knowledge Base Informatica Professional Certification Informatica Technical Support

Obtaining Informatica DocumentationYou can access Informatica documentation from the product CD or online help.

Visiting Informatica Customer PortalAs an Informatica customer, you can access the Informatica Customer Portal site at http://my.informatica.com. The site contains product information, user group information, newsletters, access to the Informatica customer support case management system (ATLAS), the Informatica Knowledge Base, and access to the Informatica user community.

Visiting the Informatica Web SiteYou can access Informaticas corporate web site at http://www.informatica.com. The site contains information about Informatica, its background, upcoming events, and locating your closest sales office. You will also find product information, as well as literature and partner information. The services area of the site includes important information on technical support, training and education, and implementation services.

Visiting the Informatica Developer Network The Informatica Developer Network is a web-based forum for third-party software developers. You can access the Informatica Developer Network at the following URL:

http://devnet.informatica.com

The site contains information on how to create, market, and support customer-oriented add-on solutions based on interoperability interfaces for Informatica products.

Visiting the Informatica Knowledge BaseAs an Informatica customer, you can access the Informatica Knowledge Base at http://my.informatica.com. The Knowledge Base lets you search for documented solutions to known technical issues about Informatica products. It also includes frequently asked questions, technical white papers, and technical tips.

Obtaining Informatica Professional CertificationYou can take, and pass, exams provided by Informatica to obtain Informatica Professional Certification. PrefaceInformatica PowerCenter 8 Level I Developer xxi

For more information, go to:

http://www.informatica.com/services/education_services/certification/default.htm

Providing FeedbackEmail any comments on this guide to [email protected].

Obtaining Technical SupportThere are many ways to access Informatica Technical Support. You can call or email your nearest Technical Support Center listed in the following table, or you can use our WebSupport Service.

Use the following email addresses to contact Informatica Technical Support:

[email protected] for technical inquiries [email protected] for general customer service requestsWebSupport requires a user name and password. You can request a user name and password at http://my.informatica.com.

North America / South America Europe / Middle East / Africa Asia / Australia

Informatica CorporationHeadquarters 100 Cardinal WayRedwood City, California 94063United States

Toll Free877 463 2435

Standard Rate United States: 650 385 5800

Informatica Software Ltd.6 Waltham ParkWaltham Road, White WalthamMaidenhead, BerkshireSL6 3TNUnited Kingdom

Toll Free00 800 4632 4357

Standard Rate Belgium: +32 15 281 702 France: +33 1 41 38 92 26 Germany: +49 1805 702 702 Netherlands: +31 306 022 797 United Kingdom: +44 1628 511 445

Informatica Business Solutions Pvt. Ltd.301 & 302 Prestige Poseidon139 Residency RoadBangalore 560 025India

Toll FreeAustralia: 00 11 800 4632 4357 Singapore: 001 800 4632 4357

Standard Rate India: +91 80 5112 5738 Prefacexxii Informatica PowerCenter 8 Level I Developer

Unit 1: Data Integration Concepts

In this unit you will learn about:

Informatica Data Integration Mapping and Transformations Workflows and Tasks Metadata

Lesson 1-1. Introducing InformaticaInformatica provides data integration tools for both batch and real-time applications.Unit 1: Data Integration ConceptsInformatica PowerCenter 8 Level I Developer 1

Informatica is affiliated with many standards organizations, including:

Integration Consortium. www.eaiindustry.org Object Management Group (OMG). www.omg.org. Common Warehouse Metamodel (CWM). www.omg.org/cwm Enterprise Grid Alliance. www.gridalliance.org Unit 1: Data Integration Concepts2 Informatica PowerCenter 8 Level I Developer

Global Grid Forum (GGF). www.gridforum.org

XML.org. www.xml.org Web Services Interoperability Organization. www.ws-i.org Supply-Chain Council. www.supply-chain.org Carnegie-Mellon Software Engineering Institute (SEI). www.sei.cmu.edu APICS Educational and Research Foundation. www.apics.org Shared Services and Business Process Outsourcing Association (SBPOA). www.sharedxpertise.org.

Additional resources about Informatica can be found on the following websites:

www.informatica.comprovides information on Professional Services and Education Services my.informatica.comprovides access to Technical Support, product documentation, Velocity

methodology, knowledge base, and mapping templates

devnet.informatica.comthe Informatica Developers Network offers discussion forums, web seminars, and technical papers.

Lesson 1-2. Data IntegrationTraditionally, data integration is a batch processto extract, transform and load (ETL) data from transactional systems to data warehouses.Unit 1: Data Integration ConceptsInformatica PowerCenter 8 Level I Developer 3

The ETL process can be imagined as an assembly line.

Informatica PowerCenter is deployed for a variety of batch and real-time data integration purposes:

Data Migration. ERP consolidation, legacy conversion, new application implementation, system consolidationUnit 1: Data Integration Concepts4 Informatica PowerCenter 8 Level I Developer

Data Synchronization. application integration, business to business data transfer

Data Warehousing. Business intelligence reporting, data marts, data mart consolidation, operational data stores

Data Hubs. master data management; reference data hubs; single view of customer, product, supplier, employee, etc.

Business Activity Monitoring. business process improvement, real-time reportingInformatica partners with Composite Software for Enterprise Information Integration (EII): on-the-fly federated views and real-time reporting of information spread across multiple data sources, without moving the data into a centralized repository.

Lesson 1-3. Mappings and TransformationsMappings

TransformationsTransformations change the data they receive. Unit 1: Data Integration ConceptsInformatica PowerCenter 8 Level I Developer 5

PowerCenter includes the following types of transformations:

Passive. The number of rows entering and exiting the transformation are the same. Active. The number of rows exiting the transformation may not be the same as the number of rows

entering the transformation.Unit 1: Data Integration Concepts6 Informatica PowerCenter 8 Level I Developer

Commonly used PowerCenter transformations include:

Source Qualifier - reads sources Filter - filters data conditionally Sorter - sorts data Expression - performs logical/mathematical functions on data Aggregator - sums, averages, maximum, minimum Joiner - joins two data flows Lookup - looks up a corresponding value from a table or flat file

Lesson 1-4. Tasks and WorkflowsTasks

A task is an executable set of actions, functions, or commands.Unit 1: Data Integration ConceptsInformatica PowerCenter 8 Level I Developer 7

Workflows

A workflow is a set of ordered tasks that describe runtime ETL processes. Tasks can be sequenced serially, in parallel and conditionally. Each linked icon represents a task.Unit 1: Data Integration Concepts8 Informatica PowerCenter 8 Level I Developer

Lesson 1-5. MetadataMetadata, which means data about data, is information that describes data. Common contents of metadata include the source or author of a dataset, how the dataset should be accessed, and its limitations.Unit 1: Data Integration ConceptsInformatica PowerCenter 8 Level I Developer 9

Unit 1: Data Integration Concepts10 Informatica PowerCenter 8 Level I Developer

Unit 2: PowerCenter Components and User Interface

In this unit you will learn about:

PowerCenter Architecture PowerCenter Client Tools

Lesson 2-1. PowerCenter ArchitectureThe following screenshot shows the PowerCenter Architecture:

SourcesCan be relational tables or heterogeneous files (flat files, VSAM files and XML) TargetsCan be relational tables or heterogeneous files Integration ServiceThe engine that performs all of the extract, transform and load logic Repository ServiceManages connectivity to the metadata repositories that contain mapping and

workflow definitions

Repository Service ProcessMulti-threaded process that retrieves, inserts and updates repository metadata

RepositoryContains all of the metadata needed to run ETL processes Client ToolsDesktop tools used to populate the repository with metadata, execute workflows on the

Integration Service, monitor the workflows and manage the repository Unit 2: PowerCenter Components and User InterfaceInformatica PowerCenter 8 Level I Developer 11

Lesson 2-2. PowerCenter Client ToolsClient tools run on Microsoft Windows.

All tools access the repository through the Repository Service.

Workflow Manager and Workflow Monitor connect to Integration Service.

Each client application has its own interface. The interfaces have toolbars, a navigation window to the left, a workspace to the right, and an output window at the bottom.Unit 2: PowerCenter Components and User Interface12 Informatica PowerCenter 8 Level I Developer

DesignerUnit 2: PowerCenter Components and User InterfaceInformatica PowerCenter 8 Level I Developer 13

Within the Designer, you can display transformations in the following views:

Iconized. Shows the transformation in relation to the rest of the mapping. This also minimizes the screen space needed to display a mapping.

Normal. Shows the flow of data through the transformation. This view is typically used when copying/linking ports to other objects.

Edit. Shows transformation ports and properties; allows editing. This view is used to add, edit, or delete ports and to change any of the transformation attributes or properties.Unit 2: PowerCenter Components and User Interface14 Informatica PowerCenter 8 Level I Developer

Workflow ManagerUnit 2: PowerCenter Components and User InterfaceInformatica PowerCenter 8 Level I Developer 15

In the Workflow Manager, you can display tasks in the following views:

Iconized (Session task example) Edit (Session task example)Unit 2: PowerCenter Components and User Interface16 Informatica PowerCenter 8 Level I Developer

Unit 2 Lab: Using the Designer and Workflow Manager

Business PurposeYou have been asked to learn how to use Informatica PowerCenter in order to more efficiently accomplish your ETL objectives and automate the development process. Because you have li

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