会报co_money无效,我要怎么写才能把前面两个字段的和赋值给co_money
select tk_name,tk_money,overdue_money,co_money(tk_money+overdue_money) from ticket where tk_id=463327862570
会报co_money无效,我要怎么写才能把前面两个字段的和赋值给co_money
select tk_name,tk_money,overdue_money,co_money(tk_money+overdue_money) from ticket where tk_id=463327862570