Concepts
Understanding Update Maps
... The target box
... For each blocks
... Update blocks
... The return key block
... Customization

Customizing Update Maps
    How-to...
    ... Change a Mapping
    ... Remove a Mapping
    ... Revert Customizations
    ... Edit XQuery Expressions
    ... Add a Condition to an Update Block
    ... Add Update Map Procedures

Handling Errors and Warnings
    How-to...
    ... Recognize When Something is Wrong
    ... Understand Mappings with Different Data Types
    ... Cast Using a Built-In XQuery Function
    ... Cast Using a Custom XQuery Function
    ... Test an Update Map Cast
    ... Handle Disabled Procedures in Underlying Data Sources
    ... Handle Non-Unique Joins
    ... Handle Non-Unique Values
    ... Handle Unmapped Required Values

Advanced Topics
... Variable Usage Rules
... Updating Foreign Key Values

Testing Update Maps
    How-to...
    ... Enable Optimistic Locking
    ... Test a Read Function and Simple Update
    ... Test an Update Procedure