how to disable a unique key constraint in sql server

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how to disable a unique constraint

Posted 4-Oct-11 20:55pm

lakshmichawala

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André Kraak · Answer 1 · 2011-10-04T20:57:00

Solution 1

Have a look at this: http://stackoverflow.com/questions/159038/can-foreign-key-constraints-be-temporarily-disabled-using-t-sql[^].

Posted 4-Oct-11 20:57pm

André Kraak

P.Salini · Answer 2 · 2011-10-04T21:01:00

Solution 2

For disabling constraint this is the syntax

SQL

ALTER TABLE TableName NOCHECK CONSTRAINT ConstraintName

To remove Constraint this is the syntax

SQL

ALTER TABLE TableName DROP CONSTRAINT ConstraintName

Posted 4-Oct-11 21:01pm

P.Salini

Uday P.Singh · Answer 3 · 2011-10-04T21:05:00

Solution 3

try this:

SQL

ALTER TABLE [dbo.TableName] DROP CONSTRAINT [CONSTRAINTNAME]

hope it helps :)

Posted 4-Oct-11 21:05pm

Uday P.Singh

Abhinav S · Answer 4 · 2011-10-04T21:06:00

Solution 5

Have a look at the "Disabling a constraint" section in this[^] msdn article.

Posted 4-Oct-11 21:06pm

Abhinav S

lakshmichawala · Answer 5 · 2011-10-04T21:06:00

Solution 4

hi they are not working for unique key constraint

Posted 4-Oct-11 21:06pm

lakshmichawala

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André Kraak 5-Oct-11 3:10am

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