伙计们，我找不到这个问题的解决方案，它总是给出我尝试过的语法错误...你能帮我看看吗，谢谢createprocedureSP_Insert(inMatchIDPint,inTipIDint,inUserint)beginifexists(selectBetSlipIDfrombetslipswhereMatchID=MatchIDPandUserID=User)(updateBetslipssetTipID=2)else(insertintoBetslips(MatchID,TipID,UserID)value(MatchIDP,TipID,User))endifend我只想在插入之前