dropping a constraint in ms sql
/*Dropping a Constraint*/
ALTER TABLE (Table_Name)
DROP CONSTRAINT (Constraint_Name)dropping a constraint in ms sql
/*Dropping a Constraint*/
ALTER TABLE (Table_Name)
DROP CONSTRAINT (Constraint_Name)drop df constraint sql server
ALTER TABLE NameTable DROP CONSTRAINT Name_Constraint;
-- Example
--ALTER TABLE iso.works DROP CONSTRAINT DF__works__idSubMont__4D5F7D71;sql server drop constraint default value
ALTER TABLE [TheTable] DROP CONSTRAINT [TheDefaultConstraint]how to remove foreign key constraint in sql
USE AdventureWorks2012;
GO
ALTER TABLE dbo.DocExe
DROP CONSTRAINT FK_Column_B;
GOdrop constraint in ms sql
DECLARE @sql NVARCHAR(MAX)
WHILE 1=1
BEGIN
SELECT TOP 1 @sql = N'alter table tbloffers drop constraint ['+dc.NAME+N']'
from sys.default_constraints dc
JOIN sys.columns c
ON c.default_object_id = dc.object_id
WHERE
dc.parent_object_id = OBJECT_ID('tbloffers')
AND c.name = N'checkin'
IF @@ROWCOUNT = 0 BREAK
EXEC (@sql)
ENDCopyright © 2021 Codeinu
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