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Moreover, check constraints can enhance the performance and security of your database, as they are executed at the server level and reduce the need for additional checks and transactions. Add your ...
Check constraints are supported in all of the major DBMS products, including DB2, Oracle, and SQL Server. But they are too-often ignored and not implemented in production databases. Properly defined, ...
Just like CHECK constraints, SQL Server might elect to express the constraint in a manner that differs from how you've expressed it. Consider the following table DDL which creates a table with a ...