T-SQL---触发器

create trigger trig_transInfo
on transInfo
for insert
as 
declare @type char(4),@outMoney Money
declare @myCardID char(10),@balanceMoney
select @type=transType,@outMoney=transMoney,@myCardID=cardID
from inserted --从inserted表获取交易类型、教员金额等
if (@type=‘支取‘) --根据交易类型，减少或增加对应卡号的余额
 update bank set currentMoney=currentMoney-@outMoney where cardID=myCardID
else 
  update bank set currentMoney=currentMoney+@outMoney where cardID=myCardID
...