The Joy of Non-Nullable Persisted Computed Columns

Louis Davidson shows what you can do with persisted, non-nullable computed columns:

Next, let’s add a check constraint our computed column. For this example, we are just going to make sure that the value in the table is a palindrome (because this is something that every data architect has come across at least one in their life, right?). So Value = REVERSE(Value);

Read on for more fun and sometimes-useful things you can do.

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