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Databases

GLENN YAGO
GLENN YAGO
3,253 Points
Posted by GLENN YAGO
GLENN YAGO
3,253 Points

How do I add a column for a foreign key with constrain referencing another column of another table?

Your assistance will be much appreciated.

1 Answer

Steven Parker
Steven Parker
231,140 Points
Steven Parker
Steven Parker
231,140 Points

You didn't say for what kind of database, but it will probably be this or something close to it:

ALTER TABLE mytable ADD mycolumn columntype;
ALTER TABLE mytable ADD FOREIGN KEY (mycolumn) REFERENCES othertable(othercolumn);