SQL : ERROR 1452 (23000): Cannot add or update a child row: a foreign key constraint fails

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SQL : ERROR 1452 (23000): Cannot add or update a child row: a foreign key constraint fails
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SQL : ERROR 1452 (23000): Cannot add or update a child row: a foreign key constraint fails
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SQL add constraint : fails a key row: Cannot update or foreign 1452 a (23000): child ERROR



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