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Asked: 2026-05-10T16:49:55+00:00

I would like a constraint on a SQL Server 2000 table column that is

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I would like a constraint on a SQL Server 2000 table column that is sort of a combination of a foreign key and a check constraint. The value of my column must exist in the other table, but I am only concerned with values in the other table where one of its columns equal a specified value. The simplified tables are:

 import_table: part_number  varchar(30) quantity     int  inventory_master: part_number  varchar(30) type         char(1)

So I want to ensure the part_number exists in inventory_master, but only if the type is ‘C’. Is this possible? Thanks.

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1 Answer

  1. You could use an INSTEAD OF INSERT trigger to emulate that behaviour.

    Check value existence when an insert is about to occur.

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