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1
All Powder Board and Ski
Microsoft Access WorkbookChapter 10: Distributed DatabasesJerry PostCopyright © 2003
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Split Access Database
Customer
Sale
Model
Inventory
SaleItem
SaleID DateCustomer
SKU Qty Price
Forms, Queries, Reports, Modules
Tables and Relationships
Links to tables
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Split Database
Back-end database: tables and relationships
Front-end database: Links to back-end tables.Contains all forms and reports.
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Moving a Linked Database: Linked Table Manager
If you move a back-end database, you will have to re-link the tables
Right click on the linked tables, select Linked Table Manager
Select all of the tables, click the OK button and you will be promoted for the new location
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Create a Replica
Icon to indicate table is replicated
Tools/Replication/Create Replica creates two tables: Master and Replica
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Modify the Data
CustomerID LastName FirstName Phone
1 Jones2 Jack 111-222-3333
2 Sanchez Paul 111-444-9999
2003 Hunton Mark 213-724-6073
Master Customer table
CustomerID LastName FirstName Phone
1 Jones Jack 111-222-3333
2 Sanchez Paul 111-444-9999
2003 Hunton Mark 213-724-6073
1054243589 Smith Susan 222-333-4444
Replica Customer table
Change a name
Add a new customer
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Synchronized Tables
CustomerID LastName FirstName Phone
1 Jones2 Jack 111-222-3333
2 Sanchez Paul 111-444-9999
2003 Hunton Mark 213-724-6073
1054243589 Smith Susan 222-333-4444
Both databases pick up all of the changes
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Conflicts from Concurrent Changes
Choose which version to accept
Two changes made before synchronization
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Access Web Pages
Web page wizard creates forms that run similar to Windows forms, but over the Web
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XML: New Vendor Models
Internet Explorer makes it easy to see the structure and data elements in an XML file
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XML in Text Editor
<ItemModel><ModelID>BQQ-333</ModelID><ManufacturerID>23</ManufacturerID><Category>Board</Category><Color>Black</Color><Cost>137.50</Cost><ModelYear>2005</ModelYear><ItemMaterial>Composite</ItemMaterial><ListPrice>224.99</ListPrice><Style>Downhill</Style><SkillLevel>6</SkillLevel><WaistWidth>159</WaistWidth><EffectiveEdge>1021</EffectiveEdge><BindingStyle>Strap</BindingStyle><RentalRate>20</RentalRate></ItemModel>