DELETE statement conflicted with COLUMN REFERENCE constraint.

A conflict occurred while your query attempted to execute. The Query Designer has tried to locate the direct source of the conflict. Please check the syntax of your query to attempt to resolve the conflict.

See Also

Concepts

Error Messages in Visual Database Tools

Other Resources

How to: Delete Check Constraints (Visual Database Tools)
Working with Constraints (Visual Database Tools)

Help and Information

Getting SQL Server 2005 Assistance