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MySQL Foreign Constraint ON DELETE CASCADE

原文 2013-07-24 00:39:42 3 1 mysql/ foreign-keys/ cascade

I Want to know if I implemented it right or if it is the other way around.

So I have 3 tables:

TableParent , TableChild and AnotherTable

TableParent has a PK called id

TableChild and AnotherTable has a PK also called id that is also a FK Constraint to TableParent.id and it has ON DELETE CASCADE

I modeled it thinking that if I delete a row in TableParent , every row in TableChild and AnotherTable will be auto deleted.

Does it works that way? (Using MySQL, engine InnoDB)

1 answers

Was going to post this in a comment, but the comment button is not showing up.

Check out this quesion/answer. I think it has all you need and more on this issue.

MySQL foreign key constraints, cascade delete

I could retype it all, but that seems redundent.

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Related Question Foreign constraint On Delete Cascade not working MariaDB/MySQL foreign key constraint: possible to request cascade at time of delete? foreign key constraint on update cascade on delete cascade MySQL #1452 - Cannot add or update a child row: a foreign key constraint fails ON DELETE CASCADE ON UPDATE CASCADE) Force a delete cascade with no constraint in MySQL Foreign Key Constraint On delete cascade not effective Delete cascade foreign key constraint error with SQLAlchemy How to change constraint FOREIGN KEY in mysql 8 from `ON DELETE CASCADE` to `ON DELETE SET NULL` in laravel migration or raw sql How to debug mysql foreign key constraint, ON DELETE CASCADE not deleting rows from Child table on production environment InnoDB MySql Error 1215 Cannot add foreign key constraint / even after removing cascade obligations on DELETE

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MySQL Foreign Constraint ON DELETE CASCADE

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1 answers

solution1 0 2013-07-24 00:45:52

solution1
0 2013-07-24 00:45:52