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Asked: 2026-06-13T22:38:31+00:00

I have been trying to find out if I can make a column Open

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I have been trying to find out if I can make a column Open on Insert, and closed on Update.
What I mean by that, is I need a column that I can give it a value only on Insert, but if I try to give it a value with Update, the statement would fail.

I am working with SQL 2008…

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  1. Editorial Team

    You can’t do this with constraints – you need to use triggers for this.

    A trigger is a special kind of stored procedure that automatically executes when an event occurs in the database server. DML triggers execute when a user tries to modify data through a data manipulation language (DML) event. DML events are INSERT, UPDATE, or DELETE statements on a table or view.

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