触发器

/* 商户资料更新时更新终端 */
DELIMITER |
CREATE TRIGGER
    bankChange
AFTER UPDATE
    ON david_bank
FOR EACH ROW
    BEGIN
        /*
        declare termC int;
        set termC = (select count(*) as nums from david_terminal where mer_id=new.mer_id);
        if termC<=1 then
            update david_terminal set
                main_tel = new.main_tel,
                sale_type_id = new.sale_type_id
            where mer_id=new.mer_id;
        end if;
        */
        update david_account set
            bank_name = new.name
        where bank_id=new.cut_no;
    END
|
DELIMITER ;