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Re: PLS HELP: ERROR 1452 (23000) Foreign Key Constraint
Posted by: Roland Chan
Date: April 06, 2011 02:15PM

I think I may have solved it! Maybe this will help someone else.

1. I was using mixed-case table names
2. I was using MySQL on OS/X, and I just discovered lower_case_table_names are set to 2 by default.
3. InnoDB databases should have this value set to 1 regardless of platform.
4. A quick change to lowercased table names resolved the issue.

Next step will be to change the default server value to 1 per the docs:

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