Disabling foreign key checks

It sucks, but sometimes ya gotta.

You can’t DROP multiple tables, a parent table or a child table until you disable foreign key checks four your current database. Or for that matter, TRUNC the table, either.

To disable/enable foreign key checks, use the following syntax. (Don’t ever disable @@GLOBAL, unless you’re really irritated and have lost your mind)

 SET @@SESSION.FOREIGN_KEY_CHECKS = 'OFF';
 SET @@SESSION.FOREIGN_KEY_CHECKS = 'ON';

 

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