MySql 刪除表某行，級聯刪除其它表相關數據（觸發器）

create trigger delete_trigger after delete on table_delete1 for each row begin DELETE FROM table_delete2 WHERE column1 = old.column1; end; 解釋：刪除表 table_delete1的某行，級聯刪除table_delete2的行中column1等於 t

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