Find MySQL Foreign Keys

January 9th, 2014

Sometimes you need a quick way to find out what foreign key is blocking your action.

[code]SELECT
CONCAT(table_name, ‘.’, column_name) AS ‘foreign key’,
CONCAT(referenced_table_name, ‘.’, referenced_column_name) AS ‘references’
FROM information_schema.key_column_usage
WHERE referenced_table_name IS NOT NULL;[/code]

http://www.conandalton.net/2008/09/list-foreign-key-constraints-in-oracle.html

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