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Use the Domain Constraints dialog to create or modify a domain constraint. A domain constraint confirms that the values provided for a domain meet a defined criteria. The Domain Constraints dialog implements options of the ALTER DOMAIN command.
The Domain Constraints dialog organizes the development of a domain constraint through the following dialog tabs: General and Definition. The SQL tab displays the SQL code generated by dialog selections.
Use the fields in the General tab to identify the domain constraint:
Click the Definition tab to continue.
Use the fields in the Definition tab to define the domain constraint:
Click the SQL tab to continue.
Your entries in the Domain Constraints dialog generate a SQL command (see an example below). Use the SQL tab for review; revisit or switch tabs to make any changes to the SQL command.
The following is an example of the sql command generated by user selections in the Domain Constraints dialog:
The example shown demonstrates creating a domain constraint on the domain timesheets named weekday. It constrains a value to equal Friday.