如圖,表中只有兩個字段,怎樣能夠增長一列帶自增標識的列呢ide
參考一下語句,修改便可code
select a.*,(@ROW:=@ROW+1) rowNumber from student a,(SELECT @ROW:=0) b -- 或者 select a.*,(@ROW:=@ROW+1) rowNumber from student a inner join (SELECT @ROW:=0) b