insert into kcyl(ylgh,ylgg,ylzs,ylsl,ylje) select ylgh,ylgg,ylsyzs,ylsysl,ylsyje From (Select ylgh,ylgg,sum(ylsyzs) as ylsyzs,sum(ylsysl) as ylsysl,sum(ylrksl*yldj)/sum(ylrksl)*sum(ylsysl) as ylsyje from yl group by ylgh,ylgg) as kcbb执行 有 违反了主键约束 错误,kcyl中主键为ylgh,ylgg,
请问怎样做 当插入kcyl的ylgh,ylgg值kcyl中已有时,能自动判断不插啊
请问怎样做 当插入kcyl的ylgh,ylgg值kcyl中已有时,能自动判断不插啊
你這個沒有辦法給你改啊 怎麽一個Insert 對應了兩個From啊?汗 如果是想通過多個Select來給表添加數據 最好用Values來做 一條一條的