Using Is Null and Is Not Null You should combine the SQL Is operator with Null to find Null values. You can’t use the = operator to compare Null values to anything, as the result will always be ...

If you are unlucky enough to have the surname "Null", you basically don't exist, as far as some SQL servers are concerned iStock It is a troublesome process registering for an account with online ...

The Different Between NULLs and NULL-Surrogates The only alteration between allowing NULLs and using NULL-surrogates is in the operations coded/performed, and the implementation foreknowledge that ...