Chapter 4 Working with an XML model

Unique checks

The following XML model checks are made on uniques:

Check Description and Correction
Unique name and code uniqueness Unique constraint names and codes must be unique in the model.

Manual correction: Modify the duplicate name/code

Automatic correction: Appends a number to the duplicate name/code
Existence of fields A unique constraint must contain at least one field.

Manual correction: Add at least one field to the unique constraint or delete the unique constraint. For example: @numEmployee

Automatic correction: Deletes unassigned unique constraint

For more information on fields, see section Defining an identity constraint field in chapter Building an XML model.
Undefined Selector You must define an XPath expression for a unique constraint selector attribute.

Manual correction: In the unique constraint property sheet, define an XPath expression for the unique constraint selector attribute. For example: s:company/s:employee

Automatic correction: None

For more information on XPath expressions, see section Defining an identity constraint selector in chapter Building an XML model.

 

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