获取当天最大流水号存储过程
alter procedure usp_getSelfSeqNo ( @seqName nvarchar(32), @result int output ) as begin --判断当天是否存在该名字的流水号 begin tran declare @todayCount int select @todayCount=COUNT(*) from T_DailySeqNo where SeqName=@seqName and DATEDIFF(DAY,SeqDate,GETDATE())=0 if @todayCount<=0--不存在,则插入相应的流水号 begin insert into T_DailySeqNo (SeqName,SeqDate,CurValue) values(@seqName,convert(varchar(10),GETDATE(),20),0)--默认初始值为0 end else--否则,更新+1 begin update T_DailySeqNo set CurValue=CurValue+1 where SeqName=@seqName and DATEDIFF(DAY,SeqDate,GETDATE())=0 end select @result=curvalue from T_DailySeqNo --获取当天的流水号 where SeqName=@seqName and DATEDIFF(DAY,SeqDate,GETDATE())=0 commit end
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