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一段优化排序的Sql语句
作者:武汉SEO闵涛  文章来源:敏韬网  点击数973  更新时间:2007/11/14 12:57:14  文章录入:mintao  责任编辑:mintao

if exists (select * from dbo.sysobjects where id = object_id(N''''[dbo].[OrderOptimize]'''') and OBJECTPROPERTY(id, N''''IsProcedure'''') = 1)
drop procedure [dbo].[OrderOptimize]
GO

SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS OFF
GO

CREATE Procedure OrderOptimize

(
@ID int,
@intOrder int,
@TableName varchar(50)
)
AS


BEGIN TRANSACTION TransOrderOptimize

Declare @SqlStr nvarchar(500)
Declare @i int
Declare @CursorSql nvarchar (500)
Declare @UpdateOrder nvarchar(500)
declare @TempId int
--declare @CursorName varchar(50)
--print(N'''' update ''''+cast(@TableName as varchar(50))+''''  set intOrder = ''''''''''''+cast(@intOrder as int)+''''''''''''   where ID=''''''''''''+@ID+'''''''''''''''');
begin
 
 set @SqlStr=N'''' update ''''+cast(@TableName as varchar(50))+'''' set intOrder = ''''''''''''+cast(@intOrder as varchar(50))+'''''''''''' where ID=''''''''''''+cast(@ID as varchar(10))+'''''''''''''''';

exec sp_executesql @SqlStr;
end

Begin
 set nocount on
 set @i=0;
 --set @CursorName=''''product'''';
 --set @SqlTemp=N''''select ID from ''''+cast(@TableName as varchar(50))+'''' ORDER BY intOrder'''';
 --declare Order_Cursor cursor for sp_executesql @SqlTemp

 declare @temp nvarchar(500)
 set @temp =N''''declare Order_Cursor cursor for select  ID from ''''+cast(@TableName as varchar(50))+''''  ORDER BY intOrder''''
 exec sp_executesql  @temp

 open Order_Cursor
 fetch next from Order_Cursor into @TempId

 while @@FETCH_STATUS=0
 Begin
  --print @TempId;
  set @i=@i+1;
  set @UpdateOrder=N''''Update ''''+cast(@TableName as varchar(50))+''''  Set intOrder=''''''''''''+cast(@i as varchar(10))+'''''''''''' where ID=''''''''''''+cast(@TempId as varchar(10))+'''''''''''''''';
  --print @UpdateOrder;
  execute sp_executesql @UpdateOrder
  fetch next from Order_Cursor into @TempId
 End

 CLOSE Order_Cursor
 DEALLOCATE Order_Cursor
End


if @@error<>0
 Begin
 raiserror(''''排序优化失败,请与开发商联系!'''',16,1)
 RollBack Transaction TransOrderOptimize
 Return 99
end

Commit Transaction TransOrderOptimize
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO

 

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