实现SQL分页的存储过程代码

USE [SendMessage]GO/****** Object: StoredProcedure [dbo].[pages]  Script Date: 07/09/2015 13:46:50 ******/SET ANSI_NULLS ONGOSET QUOTED_IDENTIFIER ONGOALTER PROC [dbo].[pages](@tbname   nvarchar(100),        --要分页显示的表名@FieldKey  nvarchar(1000),   --用于定位记录的主键(惟一键)字段,可以是逗号分隔的多个字段@PageCurrent int=1,        --要显示的页码@PageSize  int=10,        --每页的大小(记录数)@FieldShow nvarchar(1000)='',   --以逗号分隔的要显示的字段列表,如果不指定,则显示所有字段@FieldOrder nvarchar(1000)='',   --以逗号分隔的排序字段列表,可以指定在字段后面指定DESC/ASC@WhereString  nvarchar(1000)=N''   --查询条件)ASbegin IF ISNULL(@FieldKey,N'')=''BEGIN  RAISERROR(N'分页处理需要主键（或者惟一键）',1,16)  RETURNEND IF ISNULL(@PageCurrent,0)<1 SET @PageCurrent=1 IF ISNULL(@PageSize,0)<1 SET @PageSize=10 IF ISNULL(@FieldShow,N'')=N'' SET @FieldShow=N'*' IF ISNULL(@FieldOrder,N'')=N''  SET @FieldOrder=N''ELSE  SET @FieldOrder=N'ORDER BY '+LTRIM(@FieldOrder) IF ISNULL(@WhereString,N'')=N''  SET @WhereString=N''ELSE  SET @WhereString=N'WHERE '+@WhereString+N'' --计算分页显示的TOPN值DECLARE @TopN varchar(20),@StartRecord varchar(20),@EndRecord varchar(20)SELECT @TopN=@PageSize,  @StartRecord=(@PageCurrent-1)*@PageSize+1,  @EndRecord=(@PageCurrent-1)*@PageSize+@PageSize --第一页直接显示IF @PageCurrent=1  EXEC(N'SELECT TOP '+@TopN    +N' '+@FieldShow    +N' FROM '+@tbname    +N' '+@WhereString    +N' '+@FieldOrder)ELSEEXEC(N'with temptbl as(select ROW_NUMBER() Over('+@FieldOrder+') as row, '+@FieldKey+' from '+@tbname+N' '+@WhereString+')select '+@FieldShow+' from (select B.* from (select '+@FieldKey+' from temptbl where row between '+@StartRecord+' and '+@EndRecord+')A left join '+@tbname+' B on A.'+@FieldKey+'=B.'+@FieldKey+')C') END