sqlserver 分页

USE [HR_CheckIn]
GO

/****** Object:  StoredProcedure [dbo].[DCJET_PORTAL_PAGER_WITH_NotIn]    Script Date: 2015-12-23 9:59:16 ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

ALTER   PROCEDURE [dbo].[DCJET_PORTAL_PAGER_WITH_NotIn]
@tblName      VARCHAR(5000), -- 表名
@strGetFields VARCHAR(5000) = '*', -- 需要返回的列
@fldName      VARCHAR(255) = '', -- 排序的方式,如：List_No asc ,List_G_No desc
@PageSize     INT = 10, -- 页尺寸
@PageIndex    INT = 1, -- 页码
@strKey       VARCHAR(100) = 'id',--主键
@strWhere     VARCHAR(1500) = '' -- 查询条件 (注意: 不要加 where)
AS
DECLARE
@strSQL VARCHAR(8000) -- 主语句
DECLARE
@strSqlCount VARCHAR(8000) -- 主语句
DECLARE
@strSqlNoPage VARCHAR(8000) -- 主语句
DECLARE
@strOrder VARCHAR(400) -- 排序类型

SET @strWhere = LTRIM(RTRIM(@strWhere))
IF @strWhere != ''
SET @strSqlCount = 'select count(*) as Total from ' + @tblName + ' where ' + @strWhere
ELSE
SET @strSqlCount = 'select count(*) as Total from ' + @tblName + ''

SET @strOrder = ' order by ' + @fldName
IF @strWhere != ''
SET @strSqlNoPage = 'select  ' + @strGetFields + '  from ' + @tblName + ' where ' + @strWhere + ' ' + @strOrder
ELSE
SET @strSqlNoPage = 'select   ' + @strGetFields + '  from ' + @tblName + ' ' + @strOrder
IF @PageIndex = 1
BEGIN
IF @strWhere != ''
SET @strSQL = 'select top ' + STR(@PageSize) + ' ' + @strGetFields + '  from ' + @tblName + ' where ' + @strWhere + ' ' + @strOrder
ELSE
SET @strSQL = 'select top ' + STR(@PageSize) + ' ' + @strGetFields + '  from ' + @tblName + ' ' + @strOrder
--如果是第一页就执行以上代码，这样会加快执行速度
END
ELSE
BEGIN
--以下代码赋予了@strSQL以真正执行的SQL代码
IF @strWhere != ''
SET @strSQL = 'select top ' + STR(@PageSize) + ' ' + @strGetFields + '  from ' + @tblName + ' where ' + @strKey + '' + ' not in (select top ' + STR((@PageIndex - 1) * @PageSize) + ' ' + @strKey + ' from ' + @tblName + ' where ' + @strWhere + ' ' + @strOrder + ') and ' + @strWhere + ' ' + @strOrder
ELSE
SET @strSQL = 'select top ' + STR(@PageSize) + ' ' + @strGetFields + '  from ' + @tblName + ' where ' + @strKey + ' not in (select top ' + STR((@PageIndex - 1) * @PageSize) + ' ' + @strKey + ' from ' + @tblName + '' + @strOrder + ')' + @strOrder
END

PRINT @strSqlCount
EXEC( @strSqlCount)

PRINT @strSQL
EXEC( @strSQL)

PRINT @strSqlNoPage
SELECT @strSqlNoPage

GO