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LabDynamic Lookup

Lab at a Glance................................................................2

Objectives..............................................................2Summary................................................................2Duration.................................................................2

Exercises..........................................................................3

Exercise 1: Create the Mapping.............................3Exercise 2: Create an !un the "or#$%o&............12

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Lab. Dynamic Lookup

Lab at a Glance

The exercises in this lab are designed to walk the student

through the process of using a Lookup transformation.

Objectives

After completing the lab, the student will be able to use aDynamic Lookup transformation.

Summary

The purpose of this lab is to load an ODS!"#LO$!! table

with records.

The data will be extracted from the !"#LO$!! flat file. The

target table ODS!"#LO$!! table will be used as the lookup

table.

SOURCE% !"#LO$!! flat file

TARGET% ODS!"#LO$!!

The completed mapping should look as follows%

DurationThis lab should take approximately 40minutes.

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Lab. Dynamic Lookup

Exercises

Exercise 1: Create the a!!in"

Ste! 1. #m!ort the source table.

&lear the Source Analy'erworkspace (right)click

anywhere in the workspace and select Clear All*.

&ontinue to work in the assigned student folder and

import the EMP relational source table from the SDBUdatabase schema.

The source should look as follows%

Ste! 2. #m!ort the tar"et.

&lear the +arehouse Designer workspace (right)clickanywhere in the workspace and select Clear All*.

mport theEMPLOYEE_TGT relational database target table

from the TDBUxxdatabase schema.

The target should look as follows%

Sa-e the repository.

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Lab. Dynamic Lookup

Ste! 3. Creatin" a ma!!in".

&reate a mapping called

m_EMP_TGT_DYNAMIC_LOOKUP.

Ste! $. %&& source an& tar"et.

Add the EMP source definition with its respecti-e Source

ualifier to the mapping%

Add the target definitionODS_CUSTOMER_ACTIVE.

Sa-e the repository.

Ste! '. Create a loo(u! trans)ormation.

&lick the Lookup Transfora!"on button. #osition the

pointer in the workspace and click again.

The Sele#! Lookup Ta$le for Lookup Transfora!"ondialog

appears.

Since the EMPLOYEE_TGT tablewhich is imported as atarget.

&lick O%and a Lookup transformation will appear in the

workspace.

/ename the Lookup transformation

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Lab. Dynamic Lookup

The Designer willautomatically choose theports to compare based on

lkp_EMPLOYEE_TGT.

&opy0link the following ports from Double)click on the

header of lkp_EMPLOYEE_TGT.

EMP_&O

E&AME

'OB

MGR

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DEPT&O

The E)"! Transfora!"onsdialog box appears.

&lick on the Con)"!"ontab and click the A)) a ne*

#on)"!"onbutton%

Select EMP&Oand INEMP&Ofor the condition.

&hange the Conne#!"on Infora!"onon the Proper!"estab to

+Sour#e:

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Lab. Dynamic Lookup

the sequential order ofLookup ports and Inputports.

Because the source andlookup tables come fromthe same database(schema) the !"ource

#ariable may be used.

"ake sure that Dynamic Lookup &ache check box and

nsert0!lse update box is checked.

1ow 1ewLookup/ow input row port is added to ports

which is not editable.

0 = In!e,ra!"on Ser-"#e )oes no! up)a!e or "nser!

!.e ro* "n !.e #a#.e/

1 = In!e,ra!"on Ser-"#e "nser!s !.e ro* "n!o !.e

#a#.e/

2 = In!e,ra!"on Ser-"#e up)a!es !.e ro* "n !.e

#a#.e/

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Lab. Dynamic Lookup

"ust gi-e associated expression.

While using a dynamic lookup cache, we must associate each

lookup/output port with an input/output port or a sequence ID. The

Integration Service uses the data in the associated port to insert or update

rows in the lookup cache. The Designer associates the input/output ports

with the lookup/output ports used in the lookup condition.

When we select Sequence-ID in the ssociated !ort column, the

Integration Service generates a sequence ID "or each row it inserts into the

lookup cache.

&hange the data type of !"##2 to nteger.Se3uence)dwill be added.

&lick O%to close theE)"! Transfora!"onsdialog box.

Sa-e the repository.

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Lab. Dynamic Lookup

Ste! *. Create the +outer ,rans)ormationrtr-ELO/EE-,G,

&opy0link the following ports from

lkp_EMPLOYEE_TGT to the router and create tow new

groups 1S!/T and 4#DAT!

&e*LookupRo*

EMP_P%

EMP_&O

E&AME

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Lab. Dynamic Lookup

Ste! 0. Create an u!&ate strate"y trans)ormation.

$se an $pdate "trategytransformation whenkeeping history informationin a table or updating a

table to keep the mostcurrent information.

&reate two 4pdate Strategy transformation and

name it upd_EMP_TGT_INS andupd_EMP_TGT_UPD.

&opy0link the following ports fromrtr!"#LO$!!T5T 1S!/T 5roup toupd_EMP_TGT_INS and Update grup t

upd_EMP_TGT_UPD %

EMP_P%

EMP_&O

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Lab. Dynamic Lookup

E&AME

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(IREDATE

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COMM

DEPT&O

!dit upd_EMP_TGT_INS.

&lick on the Proper!"estab and add the following

expression in the Up)a!e S!ra!e,0 Express"onfield%DD_INSE!T

6alidate the formula and clickthe O%button to close theExpress"on E)"!orwindow

!dit upd_EMP_TGT_UPD

&lick on the Proper!"estab and add the followingexpression in the Up)a!e S!ra!e,0 Express"onfield%

DD_INSE!T

6alidate the formula and clickthe O%button to close theExpress"on E)"!orwindow.

&lick O%to close the E)"! Transfora!"onwindow.

Sa-e your work.

Ste! . Dra" the tar"et tice into or(s!ace.

/ename the targets as !"#LO$!!T5T1S!/T and!"#LO$!!T5T4#DAT!.

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Lab. Dynamic Lookup

Ste! . Lin( the tar"et &e)inition.

Link manually from upd!"#T5T1S to!"#LO$!!T5T1S!/T and upd!"#T5T4#Dto !"#LO$!!T5T4#DAT!

Sa-e the repository.

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Lab. Dynamic Lookup

Exercise 2: Create an& +un the 4or()lo

Ste! 1. Create a or()lo.

&reate a workflow called"#_EMPLOYEE_DYNAMIC_LKP.

&reate a session task called $_m_EMP_TGT_DYNAMIC_LOOKUP.

Double)click on the session task. The E)"! Tasksdialogbox appears.

Select the Mapp"n,tab.

n the 1a-igation box, select the source S1_I&VOICE.

4nder Conne#!"ons, click on the down arrow , select

na!"-e_sour#eand click O%.

n the 1a-igation box, select the targetODS_CUSTOMER_ACTIVE.

4nder Conne#!"ons, click on the down arrow ,

select na!"-e_!ar,e!_xxand click O%.

4nder Proper!"es, the Tar,e! loa) !0peshould be

defaulted to &oral. Scroll down to select theTrun#a!e !ar,e! !a$le op!"on.

&lick O%to close the E)"! Tasksdialog box.

Link S!ar!to $_ m_EMP_TGT_DYNAMIC_LOOKUP%

Sa-e, -alidate and start *f_ODS_CUSTOMER_ACTIVE_xx.

"onitor and re-iew the results for $_

m_EMP_TGT_DYNAMIC_LOOKUPin the +orkflow

"onitor.

Ste! 2. 5eri)y results 6 session trans)ormationstatistics.

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Lab. Dynamic Lookup

Ste! $. 5eri)y results.

%ote that only the first fewrows are shown here.