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Asked: May 10, 20262026-05-10T22:10:54+00:00 2026-05-10T22:10:54+00:00

I have two tables one has a three column composite key. The other needs

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I have two tables one has a three column composite key. The other needs to reference this composite key.

What is the syntax for creating a foreign key which references multiple columns.

I tried googleing, but I couldn’t find it.

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  1. 2026-05-10T22:10:55+00:00Added an answer on May 10, 2026 at 10:10 pm
    FOREIGN KEY (col1, col2, col3) REFERENCES ParentTable (colA, colB, colC) 

    Look under ‘<table_constraint>‘ in the online docs for Microsoft SQL Server CREATE TABLE.

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