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Asked: 2026-05-17T01:50:08+00:00

I want to use a table valued function and call it from within multiple

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I want to use a table valued function and call it from within multiple stored procedures rather than repeat the same query across all the stored procedures, but for compatibility with a legacy VB6/UltraGrid app I need to preserve the foreign key references from the original tables.

Within the table valued function I can specify a PRIMARY KEY, but is there a way to specify a ‘FOREIGN KEY’? I tried to modify the return table like this, but I get a syntax error:

ALTER TABLE @ReturnTable  
WITH CHECK ADD  CONSTRAINT [FK_ReturnTable_OtherTable]
FOREIGN KEY([OtherTableID])
REFERENCES [dbo].[OtherTable] ([OtherTableID])
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  1. Editorial Team

    no you can’t. the function returns a “virtual” table that exists only at run time and there is no way to FK to such a imaginary/transient set of rows. Without knowing your schema and exactly what you are trying to accomplish, my best guess it to try to use a trigger to enforce this.

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