A blank constraint expression is not allowed.

Message Text

A blank constraint expression is not allowed.

Action

You must enter a constraint in the Constraints Expression dialog box before continuing to define properties for your table.

See Also
ALTER TABLE Creating SQL Server Tables
CREATE TABLE How to create a UNIQUE constraint when creating a table (Enterprise Manager)
Creating and Modifying UNIQUE Constraints How to create a UNIQUE constraint on an existing table (Enterprise Manager)

 

  


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