创建存储过程:
CREATE procedure ordertotal(in onumber int, in taxable boolean, out ototal decimal(8,2) ) COMMENT 'Obtain order total,optionally adding tax'beginDECLARE total decimal(8,2); declare taxrate int DEFAULT 6; SELECT sum(item_price * quantity) from orderitems where order_num = onumber into total; if taxable then SELECT total+(total/100*taxrate) into total; end if; SELECT total into ototal;
end;
调用存储过
本文来源gaodai.ma#com搞##代!^码7网
程:taxable为真
call ordertotal(20005,1,@total);
SELECT @total;
调用存储过程:taxable为假
call ordertotal(20005,1,@total);
SELECT @total;
以上就是mysql智能存储过程的内容,更多相关内容请关注搞代码(www.gaodaima.com)!