How can I temporarily disable a foreign key constraint in MySQL?

Submitted 3 years, 6 months ago
Ticket #244
Views 260
Language/Framework MySQL
Priority Low
Status Closed

Is it possible to temporarily disable constraints in MySQL?

I have two Django models, each with a foreign key to the other one. Deleting instances of a model returns an error because of the foreign key constraint:

cursor.execute("DELETE FROM myapp_item WHERE n = %s", n)
transaction.commit_unless_managed()  #a foreign key constraint fails here

cursor.execute("DELETE FROM myapp_style WHERE n = %s", n)
transaction.commit_unless_managed()

Is it possible to temporarily disable constraints and delete anyway?

Submitted on Oct 19, 20
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1 Answer

Verified

Try DISABLE KEYS or

SET FOREIGN_KEY_CHECKS=0;

Make sure to

SET FOREIGN_KEY_CHECKS=1;

Submitted 3 years, 6 months ago


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