Final answer:
To disable all check constraints in an SQL Server Database, use the ALTER TABLE command with NOCHECK CONSTRAINT ALL, which can be iterated over all tables with sp_msforeachtable.
Step-by-step explanation:
To disable all Check Constraints in an SQL Server Database, you would generally utilize a TSQL command. The most common approach is to use the ALTER TABLE command together with NOCHECK CONSTRAINT ALL. This tells SQL Server to ignore the check constraints when performing operations on the table. Disabling check constraints can be useful when bulk inserting data that may violate these constraints but should be done with caution as it can lead to inconsistent data.
To disable the check constraints for a single table, you would use:
ALTER TABLE YourTableName NOCHECK CONSTRAINT ALL
To disable all check constraints in the entire database, a common approach is to use a script that iterates over all constraints and disables them:
EXEC sp_msforeachtable "ALTER TABLE ? NOCHECK CONSTRAINT ALL"
Remember to re-enable the constraints after your operations are complete:
EXEC sp_msforeachtable "ALTER TABLE ? WITH CHECK CHECK CONSTRAINT ALL"
The WITH CHECK CHECK CONSTRAINT ALL re-enables the constraints and forces a check for existing rows, ensuring that all data complies with the constraints.