儲存過程
create procedure createdjh
@tablename nvarchar(40), --指定你的表名
@columname nvarchar(50),--指定乙個那一列是id
@idformate nvarchar(30),--單號的格式，如配件採購單為'cgd'
@latestid char(16) output --返回的值 ，也就是最後生成的id
asdeclare @tempid as nvarchar(16)
declare @sqlstr as nvarchar(254)
declare @datestr as char(8)
declare @tempdate as char(2)
--get the date str
set @tempdate=cast(datepart(dd,getdate() ) as char(2))
if len(@tempdate)=1
begin
set @tempdate='0'+@tempdate
endset @datestr=cast(datepart(yy, getdate()) as char(4) )
+substring( datename(mm, getdate()), 1, 3) +@tempdate
--get the last no
set @sqlstr=n'select top 1 @id = '+@columname+' from ' +@tablename+' where '+@columname+' like ltrim(rtrim(@likestr)) order by '+@columname+' desc'
declare @templikestr as char(14)
set @templikestr='%'+@idformate+ @datestr+'%'
execute sp_executesql @sqlstr,n' @likestr char(14) ,@id char(16) output', @templikestr,@tempid output --得到當前最後的乙個id號
--create the no
if @tempid is null
begin --第一次插入
set @tempid=@idformate+ @datestr+'0001'
endelse
begin
declare @templastforword as char(4)
declare @tempcount as int
declare @templenth as int
set @templastforword=right(@tempid,4)
set @tempcount=cast(@templastforword as int)
set @tempcount=@tempcount+1
set @templastforword=cast(@tempcount as char(4))
set @templenth=len(@templastforword)
if @templenth=1
begin
set @templastforword='000'+@templastforword
endelse if @templenth=2
begin
set @templastforword='00'+@templastforword
endelse if @templenth=3
begin
set @templastforword='0'+@templastforword
endset @tempid=@idformate+ @datestr+@templastforword
endselect @latestid=@tempid
return
gopublic static string getid(string tbname,string colname,string idname,sqlconnection conn)
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