Disabling the ANSI_WARNINGS setting in your code can compromise your data integrity.
As an example; say you are inserting an invoice number into a table and ANSI_WARNINGS are disabled.
You pat yourself on the back as the insert succeeded.
Can you spot the issue?
Ok you can take that pat back.
You should have ANSI_WARNINGS ON to ensure you get a warning and the operation doesn’t succeed.
One way to spot if an active connection has this setting disabled is to query the DMV sys.dm_exec_sessions. An example is shown below:
SELECT session_id ,CASE WHEN [ansi_warnings] = 1 THEN 'yes' ELSE 'no' END AS is_ansi_warnings_enabled FROM sys.dm_exec_sessions WHERE session_id > 50;
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