Delete Check Constraints
Applies To: SQL Server 2016
You can delete a check constraint in SQL Server 2016 by using SQL Server Management Studio or Transact-SQL. Deleting check constraints removes the limitations on data values that are accepted in the column or columns included in the constraint expression.
In This Topic
Before you begin:
To delete a check constraint, using:
Requires ALTER permission on the table.
In Object Explorer, expand the table with the check constraint.
Right-click the constraint and click Delete.
In the Delete Object dialog box, click OK.
In Object Explorer, connect to an instance of Database Engine.
On the Standard bar, click New Query.
Copy and paste the following example into the query window and click Execute.
ALTER TABLE dbo.DocExc DROP CONSTRAINT CHK_ColumnD_DocExc; GO
For more information, see ALTER TABLE (Transact-SQL).