/**********************************************************************************************
********************通过指定的条件分页查询数据表【TableName or ViewName】记录******************
**********************************************************************************************/
IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = object_id (N'[dbo].[SjjPagination]') AND OBJECTPROPERTY(id, N'IsProcedure') = 1)
DROP PROCEDURE [dbo].[SjjPagination]
GO

SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

--参数说明
-------------------------------------------------------------
/*
* @tblName   ----要显示的表或多个表的连接
* @fldName   ----要查询出的字段列表,*表示全部字段
* @pageSize   ----每页显示的记录个数
* @pageIndex  ----要显示那一页的记录
* @fldSort   ----排序字段列表或条件，如：id desc (多个id desc,dt asc)
* @strCondition  ----查询条件,不需where
* @pageCount  ----查询结果分页后的总页数
* @RecordCount  ----查询到的总记录数
* @UsedTime   ----耗时测试时间差
* @strSql   ----最后返回的SQL语句
*/
CREATE PROCEDURE [dbo].[SjjPagination]
(
 @tblName NVARCHAR(MAX),
 @fldName NVARCHAR(MAX),
 @pageSize INT,
 @pageIndex INT,
 @fldSort NVARCHAR(MAX),
 @strCondition NVARCHAR(MAX),
 @pageCount INT OUTPUT,
 @RecordCount INT OUTPUT,
 @UsedTime INT OUTPUT,
 @strSql nvarchar(max) = '' OUTPUT
)
AS
 SET NOCOUNT ON
 DECLARE @startRow int, @endRow INT     ----用于存放起始值与结束值
 DECLARE @timediff DATETIME       ----用于存放时间差值
 DECLARE @SqlCounts NVARCHAR(MAX)     ----用于存放总记录数查询语句
 DECLARE @strTmp NVARCHAR(MAX)      ----用于存放查询语句
 DECLARE @strWhere NVARCHAR(MAX)      ----用于存放查询条件 
 SELECT @timediff = getdate()      ----设置开始时间
 SET @startRow = (@pageIndex - 1) * @pageSize + 1 ----设置起始值
 SET @endRow = @startRow + @pageSize - 1    ----设置结束值
 ----设置总记录数查询语句----
 IF @strCondition is null or @strCondition='' ----没有设置查询条件
  BEGIN
   SET @SqlCounts = 'SELECT @RecordCount = COUNT(*) FROM ' + @tblName
  END
 ELSE ----有设置查询条件
  BEGIN
   SET @strWhere = ' WHERE ' + @strCondition
   SET @SqlCounts = 'SELECT @RecordCount = COUNT(*) FROM ' + @tblName + @strWhere
  END  
 ----取得查询结果总数量-----
 exec sp_executesql @SqlCounts,N'@RecordCount int out ',@RecordCount out
 declare @tmpCounts int
 if @RecordCount = 0
  set @tmpCounts = 1
 else
  set @tmpCounts = @RecordCount
    ----取得分页总数 ----
    set @pageCount=(@tmpCounts+@pageSize-1)/@pageSize
 ----开始分页计算并取出相应数据----
 ----SELECT * FROM (SELECT *,ROW_NUMBER() OVER (ORDER BY contnet_keyword_addDate DESC) AS RowNumber FROM Public_content_keyword ) T WHERE T.RowNumber BETWEEN @startRow AND @endRow
 IF @pageIndex = 1
  BEGIN
   IF @strCondition is null or @strCondition='' ----没有设置显示条件
    BEGIN
     SET @strTmp = 'SELECT TOP ' + CAST(@pageSize as VARCHAR(max)) + ' ' + @fldName + ' FROM ' + @tblName
    END
   ELSE ----有设置查询条件
    BEGIN
     SET @strTmp = 'SELECT TOP ' + CAST(@pageSize as VARCHAR(max)) + ' ' + @fldName + ' FROM ' + @tblName + @strWhere
    END
  END
 ELSE
  BEGIN
   IF @strCondition is null or @strCondition='' ----没有设置显示条件
    BEGIN
     SET @strTmp = 'SELECT ' + @fldName + ' FROM (SELECT ' + @fldName + ',ROW_NUMBER() OVER (ORDER BY ' + @fldSort + ') AS RowNumber FROM '+ @tblName +') T WHERE T.RowNumber BETWEEN ' + CAST(@startRow as VARCHAR(max)) + ' AND ' + CAST(@endRow as VARCHAR(max))
    END
   ELSE ----有设置查询条件
    BEGIN
     SET @strTmp = 'SELECT ' + @fldName + ' FROM (SELECT ' + @fldName + ',ROW_NUMBER() OVER (ORDER BY ' + @fldSort + ') AS RowNumber FROM '+ @tblName + @strWhere +') T WHERE T.RowNumber BETWEEN ' + CAST(@startRow as VARCHAR(max)) + ' AND ' + CAST(@endRow as VARCHAR(max))
    END
  END 
------返回查询结果-----
SET @strSql = @strTmp
EXEC(@strTmp)
SET @UsedTime = DATEDIFF(ms,@timediff,GETDATE())
SET NOCOUNT OFF
GO