Siehe Fremdschlüssel

SELECT
    TABLE_NAME,
    COLUMN_NAME,
    CONSTRAINT_NAME,
    REFERENCED_TABLE_NAME,
    REFERENCED_COLUMN_NAME
FROM
    INFORMATION_SCHEMA.KEY_COLUMN_USAGE
WHERE
	REFERENCED_TABLE_SCHEMA = 'db_name'
    AND REFERENCED_TABLE_NAME = 'table_name';
Excited Earthworm