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#foreign-key Clear
Tags #php #kotlin #bash #go #sql #rust #typescript #html #java #python #files #utils #strings #http #concurrency #async #json #arrays #security #types #crypto #database #dates #format
SQL Foreign Keys + ON DELETE Behavior
A foreign key prevents orphan rows. The `ON DELETE` clause decides what happens to children when the parent goes away: `CASCADE`, `SET NULL`, `RESTRICT`, `NO ACTION`.
#sql #foreign-key #cascade #schema
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