/**/
/*
说明:1.支持多表查询 2.支持任意排序 3.不支持表别名
参考了
evafly920:[分享]千万数量级分页存储过程(效果演示)
地址:http://blog.csdn.net/evafly920/archive/2006/03/03/614813.aspx
IF(EXISTS(SELECT * FROM sysobjects WHERE [id]=OBJECT_ID('usp_PagingLarge') AND xtype='P'))
DROP PROCEDURE usp_PagingLarge
*/
GO
CREATE PROCEDURE usp_PagingLarge
@TableNames VARCHAR( 200), -- 表名,可以是多个表,但不能用别名
@PrimaryKey VARCHAR( 100), -- 主键,可以为空,但@Order为空时该值不能为空
@Fields VARCHAR( 200), -- 要取出的字段,可以是多个表的字段,可以为空,为空表示select *
@PageSize INT, -- 每页记录数
@CurrentPage INT, -- 当前页,0表示第1页
@Filter VARCHAR( 200) = '', -- 条件,可以为空,不用填 where
@Group VARCHAR( 200) = '', -- 分组依据,可以为空,不用填 group by
@Order VARCHAR( 200) = '' -- 排序,可以为空,为空默认按主键升序排列,不用填 order by
AS
BEGIN
DECLARE @SortColumn VARCHAR( 200)
DECLARE @Operator CHAR( 2)
DECLARE @SortTable VARCHAR( 200)
DECLARE @SortName VARCHAR( 200)
IF @Fields = ''
SET @Fields = ' * '
IF @Filter = ''
SET @Filter = ' WHERE 1=1 '
ELSE
SET @Filter = ' WHERE ' + @Filter
IF @Group <> ''
SET @Group = ' GROUP BY ' + @Group
IF @Order <> ''
BEGIN
DECLARE @pos1 INT, @pos2 INT
SET @Order = REPLACE( REPLACE( @Order, ' asc ', ' ASC '), ' desc ', ' DESC ')
IF CHARINDEX( ' DESC ', @Order) > 0
IF CHARINDEX( ' ASC ', @Order) > 0
BEGIN
IF CHARINDEX( ' DESC ', @Order) < CHARINDEX( ' ASC ', @Order)
SET @Operator = ' <= '
ELSE
SET @Operator = ' >= '
END
ELSE
SET @Operator = ' <= '
ELSE
SET @Operator = ' >= '
SET @SortColumn = REPLACE( REPLACE( REPLACE( @Order, ' ASC ', ''), ' DESC ', ''), ' ', '')
SET @pos1 = CHARINDEX( ' , ', @SortColumn)
IF @pos1 > 0
SET @SortColumn = SUBSTRING( @SortColumn, 1, @pos1 - 1)
SET @pos2 = CHARINDEX( ' . ', @SortColumn)
IF @pos2 > 0
BEGIN
SET @SortTable = SUBSTRING( @SortColumn, 1, @pos2 - 1)
IF @pos1 > 0
SET @SortName = SUBSTRING( @SortColumn, @pos2 + 1, @pos1 - @pos2 - 1)
ELSE
SET @SortName = SUBSTRING( @SortColumn, @pos2 + 1, LEN( @SortColumn) - @pos2)
END
ELSE
BEGIN
SET @SortTable = @TableNames
SET @SortName = @SortColumn
END
END
ELSE
BEGIN
SET @SortColumn = @PrimaryKey
SET @SortTable = @TableNames
SET @SortName = @SortColumn
SET @Order = @SortColumn
SET @Operator = ' >= '
END
DECLARE @type varchar( 50)
DECLARE @prec int
SELECT @type =t.name, @prec =c.prec
FROM sysobjects o
JOIN syscolumns c on o.id =c.id
JOIN systypes t on c.xusertype =t.xusertype
WHERE o.name = @SortTable AND c.name = @SortName
IF CHARINDEX( ' char ', @type) > 0
SET @type = @type + ' ( ' + CAST( @prec AS varchar) + ' ) '
DECLARE @TopRows INT
SET @TopRows = @PageSize * @CurrentPage + 1
print @TopRows
print @Operator
EXEC( '
DECLARE @SortColumnBegin ' + @type + '
SET ROWCOUNT ' + @TopRows + '
SELECT @SortColumnBegin= ' + @SortColumn + ' FROM ' + @TableNames + ' ' + @Filter + ' ' + @Group + ' ORDER BY ' + @Order + '
SET ROWCOUNT ' + @PageSize + '
SELECT ' + @Fields + ' FROM ' + @TableNames + ' ' + @Filter + ' AND ' + @SortColumn + '' + @Operator + ' @SortColumnBegin ' + @Group + ' ORDER BY ' + @Order + '
')
END
GO
-- 调用例子:
-- 1.单表/单排序
EXEC usp_PagingLarge ' bigtable ', ' d_id ', ' d_id,d_title,d_content,d_time ', 20, 1, '', '', ' d_id desc '
-- 2.单表/多排序
EXEC usp_PagingLarge ' bigtable ', ' d_id ', ' * ', 20, 0, '', '', ' d_time asc,d_id desc '
-- 3.多表/单排序
EXEC usp_PagingLarge ' bigtable left join bigtable_author on bigtable.d_id=bigtable_author.BigTable_id ', ' bigtable.d_id ', ' bigtable.d_id,bigtable.d_title,bigtable.d_content,bigtable.d_time,bigtable_author.d_author ', 20, 0, '', '', ' bigtable.d_id asc '
-- 4.多表/多排序
EXEC usp_PagingLarge ' bigtable left join bigtable_author on bigtable.d_id=bigtable_author.BigTable_id ', ' bigtable.d_id ', ' bigtable.d_id,bigtable.d_title,bigtable.d_content,bigtable.d_time,bigtable_author.d_author ', 20, 0, '', '', ' bigtable.d_time asc,bigtable.d_id desc '
说明:1.支持多表查询 2.支持任意排序 3.不支持表别名
参考了
evafly920:[分享]千万数量级分页存储过程(效果演示)
地址:http://blog.csdn.net/evafly920/archive/2006/03/03/614813.aspx
IF(EXISTS(SELECT * FROM sysobjects WHERE [id]=OBJECT_ID('usp_PagingLarge') AND xtype='P'))
DROP PROCEDURE usp_PagingLarge
*/
GO
CREATE PROCEDURE usp_PagingLarge
@TableNames VARCHAR( 200), -- 表名,可以是多个表,但不能用别名
@PrimaryKey VARCHAR( 100), -- 主键,可以为空,但@Order为空时该值不能为空
@Fields VARCHAR( 200), -- 要取出的字段,可以是多个表的字段,可以为空,为空表示select *
@PageSize INT, -- 每页记录数
@CurrentPage INT, -- 当前页,0表示第1页
@Filter VARCHAR( 200) = '', -- 条件,可以为空,不用填 where
@Group VARCHAR( 200) = '', -- 分组依据,可以为空,不用填 group by
@Order VARCHAR( 200) = '' -- 排序,可以为空,为空默认按主键升序排列,不用填 order by
AS
BEGIN
DECLARE @SortColumn VARCHAR( 200)
DECLARE @Operator CHAR( 2)
DECLARE @SortTable VARCHAR( 200)
DECLARE @SortName VARCHAR( 200)
IF @Fields = ''
SET @Fields = ' * '
IF @Filter = ''
SET @Filter = ' WHERE 1=1 '
ELSE
SET @Filter = ' WHERE ' + @Filter
IF @Group <> ''
SET @Group = ' GROUP BY ' + @Group
IF @Order <> ''
BEGIN
DECLARE @pos1 INT, @pos2 INT
SET @Order = REPLACE( REPLACE( @Order, ' asc ', ' ASC '), ' desc ', ' DESC ')
IF CHARINDEX( ' DESC ', @Order) > 0
IF CHARINDEX( ' ASC ', @Order) > 0
BEGIN
IF CHARINDEX( ' DESC ', @Order) < CHARINDEX( ' ASC ', @Order)
SET @Operator = ' <= '
ELSE
SET @Operator = ' >= '
END
ELSE
SET @Operator = ' <= '
ELSE
SET @Operator = ' >= '
SET @SortColumn = REPLACE( REPLACE( REPLACE( @Order, ' ASC ', ''), ' DESC ', ''), ' ', '')
SET @pos1 = CHARINDEX( ' , ', @SortColumn)
IF @pos1 > 0
SET @SortColumn = SUBSTRING( @SortColumn, 1, @pos1 - 1)
SET @pos2 = CHARINDEX( ' . ', @SortColumn)
IF @pos2 > 0
BEGIN
SET @SortTable = SUBSTRING( @SortColumn, 1, @pos2 - 1)
IF @pos1 > 0
SET @SortName = SUBSTRING( @SortColumn, @pos2 + 1, @pos1 - @pos2 - 1)
ELSE
SET @SortName = SUBSTRING( @SortColumn, @pos2 + 1, LEN( @SortColumn) - @pos2)
END
ELSE
BEGIN
SET @SortTable = @TableNames
SET @SortName = @SortColumn
END
END
ELSE
BEGIN
SET @SortColumn = @PrimaryKey
SET @SortTable = @TableNames
SET @SortName = @SortColumn
SET @Order = @SortColumn
SET @Operator = ' >= '
END
DECLARE @type varchar( 50)
DECLARE @prec int
SELECT @type =t.name, @prec =c.prec
FROM sysobjects o
JOIN syscolumns c on o.id =c.id
JOIN systypes t on c.xusertype =t.xusertype
WHERE o.name = @SortTable AND c.name = @SortName
IF CHARINDEX( ' char ', @type) > 0
SET @type = @type + ' ( ' + CAST( @prec AS varchar) + ' ) '
DECLARE @TopRows INT
SET @TopRows = @PageSize * @CurrentPage + 1
print @TopRows
print @Operator
EXEC( '
DECLARE @SortColumnBegin ' + @type + '
SET ROWCOUNT ' + @TopRows + '
SELECT @SortColumnBegin= ' + @SortColumn + ' FROM ' + @TableNames + ' ' + @Filter + ' ' + @Group + ' ORDER BY ' + @Order + '
SET ROWCOUNT ' + @PageSize + '
SELECT ' + @Fields + ' FROM ' + @TableNames + ' ' + @Filter + ' AND ' + @SortColumn + '' + @Operator + ' @SortColumnBegin ' + @Group + ' ORDER BY ' + @Order + '
')
END
GO
-- 调用例子:
-- 1.单表/单排序
EXEC usp_PagingLarge ' bigtable ', ' d_id ', ' d_id,d_title,d_content,d_time ', 20, 1, '', '', ' d_id desc '
-- 2.单表/多排序
EXEC usp_PagingLarge ' bigtable ', ' d_id ', ' * ', 20, 0, '', '', ' d_time asc,d_id desc '
-- 3.多表/单排序
EXEC usp_PagingLarge ' bigtable left join bigtable_author on bigtable.d_id=bigtable_author.BigTable_id ', ' bigtable.d_id ', ' bigtable.d_id,bigtable.d_title,bigtable.d_content,bigtable.d_time,bigtable_author.d_author ', 20, 0, '', '', ' bigtable.d_id asc '
-- 4.多表/多排序
EXEC usp_PagingLarge ' bigtable left join bigtable_author on bigtable.d_id=bigtable_author.BigTable_id ', ' bigtable.d_id ', ' bigtable.d_id,bigtable.d_title,bigtable.d_content,bigtable.d_time,bigtable_author.d_author ', 20, 0, '', '', ' bigtable.d_time asc,bigtable.d_id desc '
与自定义分页结合例子:
/Files/jiny-z/Paging_Custom.rar
alter
PROCEDURE SP_Pagination
/*
***************************************************************
** 分页存储过程 **
***************************************************************
参数说明:
1.Tables :表名称,视图
2.PrimaryKey :主关键字
3.Sort :排序语句,不带Order By 比如:NewsID Desc,OrderRows Asc
4.CurrentPage :当前页码
5.PageSize :分页尺寸
6.Fields:字段
6.Filter :过滤语句,不带Where
7.Group :Group语句,不带Group By
8.docount: 1返回总行数,0返回列表
***************************************************************/
(
@Tables varchar( 1000),
@PrimaryKey varchar( 100),
@Sort varchar( 200) = NULL,
@CurrentPage int = 1,
@PageSize int = 10,
@Fields varchar( 1000) = ' * ',
@Filter varchar( 1000) = NULL,
@Group varchar( 1000) = NULL,
@docount bit = 0
)
AS
/*默认排序*/
IF @Sort IS NULL OR @Sort = ''
SET @Sort = @PrimaryKey
DECLARE @SortTable varchar( 100)
DECLARE @SortName varchar( 100)
DECLARE @strSortColumn varchar( 200)
DECLARE @operator char( 2)
DECLARE @type varchar( 100)
DECLARE @prec int
/*设定排序语句.*/
IF CHARINDEX( ' DESC ', @Sort) > 0
BEGIN
SET @strSortColumn = REPLACE( @Sort, ' DESC ', '')
SET @operator = ' <= '
END
ELSE
BEGIN
IF CHARINDEX( ' ASC ', @Sort) = 0
SET @strSortColumn = REPLACE( @Sort, ' ASC ', '')
SET @operator = ' >= '
END
IF CHARINDEX( ' . ', @strSortColumn) > 0
BEGIN
SET @SortTable = SUBSTRING( @strSortColumn, 0, CHARINDEX( ' . ', @strSortColumn))
SET @SortName = SUBSTRING( @strSortColumn, CHARINDEX( ' . ', @strSortColumn) + 1, LEN( @strSortColumn))
END
ELSE
BEGIN
SET @SortTable = @Tables
SET @SortName = @strSortColumn
END
SELECT @type =t.name, @prec =c.prec
FROM sysobjects o
JOIN syscolumns c on o.id =c.id
JOIN systypes t on c.xusertype =t.xusertype
WHERE o.name = @SortTable AND c.name = @SortName
IF CHARINDEX( ' char ', @type) > 0
SET @type = @type + ' ( ' + CAST( @prec AS varchar) + ' ) '
DECLARE @strPageSize varchar( 50)
DECLARE @strStartRow varchar( 50)
DECLARE @strFilter varchar( 200)
DECLARE @strSimpleFilter varchar( 200)
DECLARE @strGroup varchar( 200)
/*默认当前页*/
IF @CurrentPage < 1
SET @CurrentPage = 1
/*设置分页参数.*/
SET @strPageSize = CAST( @PageSize AS varchar( 50))
SET @strStartRow = CAST((( @CurrentPage - 1) * @PageSize + 1) AS varchar( 50))
/*筛选以及分组语句.*/
IF @Filter IS NOT NULL AND @Filter != ''
BEGIN
SET @strFilter = ' WHERE ' + @Filter + ' '
SET @strSimpleFilter = ' AND ' + @Filter + ' '
END
ELSE
BEGIN
SET @strSimpleFilter = ''
SET @strFilter = ''
END
IF @Group IS NOT NULL AND @Group != ''
SET @strGroup = ' GROUP BY ' + @Group + ' '
ELSE
SET @strGroup = ''
declare @cTemp NVarChar( 1000)
declare @PageCount int, @lineCount decimal
CREATE TABLE # temp(linecount INT)
set @cTemp = ' insert into #temp (linecount) select count(*) FROM ' + @Tables + @strFilter + ' ' + @strGroup
exec ( @cTemp)
select @lineCount = linecount from # temp
drop table # temp
if( @docount = 1)
begin
select @lineCount ' 总行数 '
end
else
begin
-- 得到总页数
set @PageCount = CEILING( @lineCount / @strPageSize)
if @CurrentPage > @PageCount
begin
set @cTemp = ' SELECT ' + @Fields + ' FROM ' + @Tables + ' WHERE 1>2 '
end
else
begin
/*执行查询语句*/
set @cTemp = ' DECLARE @SortColumn ' + @type + '
SET ROWCOUNT ' + @strStartRow + '
SELECT @SortColumn= ' + @strSortColumn + ' FROM ' + @Tables + @strFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + '
SET ROWCOUNT ' + @strPageSize + '
SELECT ' + @Fields + ' FROM ' + @Tables + ' WHERE ' + @strSortColumn + @operator + ' @SortColumn ' + @strSimpleFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + ''
end
-- print @cTemp
EXEC( @cTemp)
end
-- ---------------------------------------------------
/*
***************************************************************
** 分页存储过程 **
***************************************************************
参数说明:
1.Tables :表名称,视图
2.PrimaryKey :主关键字
3.Sort :排序语句,不带Order By 比如:NewsID Desc,OrderRows Asc
4.CurrentPage :当前页码
5.PageSize :分页尺寸
6.Fields:字段
6.Filter :过滤语句,不带Where
7.Group :Group语句,不带Group By
8.docount: 1返回总行数,0返回列表
***************************************************************/
(
@Tables varchar( 1000),
@PrimaryKey varchar( 100),
@Sort varchar( 200) = NULL,
@CurrentPage int = 1,
@PageSize int = 10,
@Fields varchar( 1000) = ' * ',
@Filter varchar( 1000) = NULL,
@Group varchar( 1000) = NULL,
@docount bit = 0
)
AS
/*默认排序*/
IF @Sort IS NULL OR @Sort = ''
SET @Sort = @PrimaryKey
DECLARE @SortTable varchar( 100)
DECLARE @SortName varchar( 100)
DECLARE @strSortColumn varchar( 200)
DECLARE @operator char( 2)
DECLARE @type varchar( 100)
DECLARE @prec int
/*设定排序语句.*/
IF CHARINDEX( ' DESC ', @Sort) > 0
BEGIN
SET @strSortColumn = REPLACE( @Sort, ' DESC ', '')
SET @operator = ' <= '
END
ELSE
BEGIN
IF CHARINDEX( ' ASC ', @Sort) = 0
SET @strSortColumn = REPLACE( @Sort, ' ASC ', '')
SET @operator = ' >= '
END
IF CHARINDEX( ' . ', @strSortColumn) > 0
BEGIN
SET @SortTable = SUBSTRING( @strSortColumn, 0, CHARINDEX( ' . ', @strSortColumn))
SET @SortName = SUBSTRING( @strSortColumn, CHARINDEX( ' . ', @strSortColumn) + 1, LEN( @strSortColumn))
END
ELSE
BEGIN
SET @SortTable = @Tables
SET @SortName = @strSortColumn
END
SELECT @type =t.name, @prec =c.prec
FROM sysobjects o
JOIN syscolumns c on o.id =c.id
JOIN systypes t on c.xusertype =t.xusertype
WHERE o.name = @SortTable AND c.name = @SortName
IF CHARINDEX( ' char ', @type) > 0
SET @type = @type + ' ( ' + CAST( @prec AS varchar) + ' ) '
DECLARE @strPageSize varchar( 50)
DECLARE @strStartRow varchar( 50)
DECLARE @strFilter varchar( 200)
DECLARE @strSimpleFilter varchar( 200)
DECLARE @strGroup varchar( 200)
/*默认当前页*/
IF @CurrentPage < 1
SET @CurrentPage = 1
/*设置分页参数.*/
SET @strPageSize = CAST( @PageSize AS varchar( 50))
SET @strStartRow = CAST((( @CurrentPage - 1) * @PageSize + 1) AS varchar( 50))
/*筛选以及分组语句.*/
IF @Filter IS NOT NULL AND @Filter != ''
BEGIN
SET @strFilter = ' WHERE ' + @Filter + ' '
SET @strSimpleFilter = ' AND ' + @Filter + ' '
END
ELSE
BEGIN
SET @strSimpleFilter = ''
SET @strFilter = ''
END
IF @Group IS NOT NULL AND @Group != ''
SET @strGroup = ' GROUP BY ' + @Group + ' '
ELSE
SET @strGroup = ''
declare @cTemp NVarChar( 1000)
declare @PageCount int, @lineCount decimal
CREATE TABLE # temp(linecount INT)
set @cTemp = ' insert into #temp (linecount) select count(*) FROM ' + @Tables + @strFilter + ' ' + @strGroup
exec ( @cTemp)
select @lineCount = linecount from # temp
drop table # temp
if( @docount = 1)
begin
select @lineCount ' 总行数 '
end
else
begin
-- 得到总页数
set @PageCount = CEILING( @lineCount / @strPageSize)
if @CurrentPage > @PageCount
begin
set @cTemp = ' SELECT ' + @Fields + ' FROM ' + @Tables + ' WHERE 1>2 '
end
else
begin
/*执行查询语句*/
set @cTemp = ' DECLARE @SortColumn ' + @type + '
SET ROWCOUNT ' + @strStartRow + '
SELECT @SortColumn= ' + @strSortColumn + ' FROM ' + @Tables + @strFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + '
SET ROWCOUNT ' + @strPageSize + '
SELECT ' + @Fields + ' FROM ' + @Tables + ' WHERE ' + @strSortColumn + @operator + ' @SortColumn ' + @strSimpleFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + ''
end
-- print @cTemp
EXEC( @cTemp)
end
-- ---------------------------------------------------
分页查询的方法已经很多很多,在这里我也加入成为其中一员。
SQL Server中有一个Set Rowcount的的设置,它的意思是使命令的处理在响应指定的行数之后停止处理命令,利用这个特点,我们可以借用它来在一个千万行级数据表中实现高性能分页查询。先来说说实现方式:
1、我们来假定Table中有一个已经建立了索引的主键字段ID(整数型),我们将按照这个字段来取数据进行分页。
2、页的大小我们放在 @PageSize中
3、当前页号我们放在 @CurrentPage中
4、如何让记录指针快速滚动到我们要取的数据开头的那一行呢,这是关键所在!有了Set RowCount,我们就很容易实现了。
5、如果我们成功地滚动记录指针到我们要取的数据的开头的那一行,然后我们把那一行的记录的ID字段的值记录下来,那么,利用Top和条件,我们就很容易的得到指定页的数据了。当然,有了Set RowCount,我们难道还用Top么?
看看Set Rowcount怎么来帮我们的忙吧:
Declare @ID int
Declare @MoveRecords int
-- @CurrentPage和@PageSize是传入参数
Set @MoveRecords = @CurrentPage * @PageSize + 1
-- 下面两行实现快速滚动到我们要取的数据的行,并把ID记录下来
Set Rowcount @MoveRecords
Select @ID =ID from Table1 Order by ID
Set Rowcount @PageSize
-- 最恨为了减少麻烦使用*了,但是在这里为了说明方便,暂时用一下
Select * From Table1 Where ID >= @ID Order By ID
Set Rowcount 0
大家可以试试看,在一个1千W记录的表里面,一下子方翻页到第100页(每页100条),看看有多快!
SQL Server中有一个Set Rowcount的的设置,它的意思是使命令的处理在响应指定的行数之后停止处理命令,利用这个特点,我们可以借用它来在一个千万行级数据表中实现高性能分页查询。先来说说实现方式:
1、我们来假定Table中有一个已经建立了索引的主键字段ID(整数型),我们将按照这个字段来取数据进行分页。
2、页的大小我们放在 @PageSize中
3、当前页号我们放在 @CurrentPage中
4、如何让记录指针快速滚动到我们要取的数据开头的那一行呢,这是关键所在!有了Set RowCount,我们就很容易实现了。
5、如果我们成功地滚动记录指针到我们要取的数据的开头的那一行,然后我们把那一行的记录的ID字段的值记录下来,那么,利用Top和条件,我们就很容易的得到指定页的数据了。当然,有了Set RowCount,我们难道还用Top么?
看看Set Rowcount怎么来帮我们的忙吧:
Declare @ID int
Declare @MoveRecords int
-- @CurrentPage和@PageSize是传入参数
Set @MoveRecords = @CurrentPage * @PageSize + 1
-- 下面两行实现快速滚动到我们要取的数据的行,并把ID记录下来
Set Rowcount @MoveRecords
Select @ID =ID from Table1 Order by ID
Set Rowcount @PageSize
-- 最恨为了减少麻烦使用*了,但是在这里为了说明方便,暂时用一下
Select * From Table1 Where ID >= @ID Order By ID
Set Rowcount 0
大家可以试试看,在一个1千W记录的表里面,一下子方翻页到第100页(每页100条),看看有多快!
分享]千万数量级分页存储过程(带效果演示)
效果演示:http: //www.cn5135.com /_App /Opportunities /QueryResult.aspx
CREATE PROCEDURE CN5135_SP_Pagination
/*
***************************************************************
** 千万数量级分页存储过程 **
***************************************************************
参数说明:
1.Tables :表名称,视图
2.PrimaryKey :主关键字
3.Sort :排序语句,不带Order By 比如:NewsID Desc,OrderRows Asc
4.CurrentPage :当前页码
5.PageSize :分页尺寸
6.Filter :过滤语句,不带Where
7.Group :Group语句,不带Group By
效果演示:http://www.cn5135.com/_App/Opportunities/QueryResult.aspx
***************************************************************/
(
@Tables varchar( 1000),
@PrimaryKey varchar( 100),
@Sort varchar( 200) = NULL,
@CurrentPage int = 1,
@PageSize int = 10,
@Fields varchar( 1000) = ' * ',
@Filter varchar( 1000) = NULL,
@Group varchar( 1000) = NULL
)
AS
/*默认排序*/
IF @Sort IS NULL OR @Sort = ''
SET @Sort = @PrimaryKey
DECLARE @SortTable varchar( 100)
DECLARE @SortName varchar( 100)
DECLARE @strSortColumn varchar( 200)
DECLARE @operator char( 2)
DECLARE @type varchar( 100)
DECLARE @prec int
/*设定排序语句.*/
IF CHARINDEX( ' DESC ', @Sort) > 0
BEGIN
SET @strSortColumn = REPLACE( @Sort, ' DESC ', '')
SET @operator = ' <= '
END
ELSE
BEGIN
IF CHARINDEX( ' ASC ', @Sort) = 0
SET @strSortColumn = REPLACE( @Sort, ' ASC ', '')
SET @operator = ' >= '
END
IF CHARINDEX( ' . ', @strSortColumn) > 0
BEGIN
SET @SortTable = SUBSTRING( @strSortColumn, 0, CHARINDEX( ' . ', @strSortColumn))
SET @SortName = SUBSTRING( @strSortColumn, CHARINDEX( ' . ', @strSortColumn) + 1, LEN( @strSortColumn))
END
ELSE
BEGIN
SET @SortTable = @Tables
SET @SortName = @strSortColumn
END
SELECT @type =t.name, @prec =c.prec
FROM sysobjects o
JOIN syscolumns c on o.id =c.id
JOIN systypes t on c.xusertype =t.xusertype
WHERE o.name = @SortTable AND c.name = @SortName
IF CHARINDEX( ' char ', @type) > 0
SET @type = @type + ' ( ' + CAST( @prec AS varchar) + ' ) '
DECLARE @strPageSize varchar( 50)
DECLARE @strStartRow varchar( 50)
DECLARE @strFilter varchar( 1000)
DECLARE @strSimpleFilter varchar( 1000)
DECLARE @strGroup varchar( 1000)
/*默认当前页*/
IF @CurrentPage < 1
SET @CurrentPage = 1
/*设置分页参数.*/
SET @strPageSize = CAST( @PageSize AS varchar( 50))
SET @strStartRow = CAST((( @CurrentPage - 1) * @PageSize + 1) AS varchar( 50))
/*筛选以及分组语句.*/
IF @Filter IS NOT NULL AND @Filter != ''
BEGIN
SET @strFilter = ' WHERE ' + @Filter + ' '
SET @strSimpleFilter = ' AND ' + @Filter + ' '
END
ELSE
BEGIN
SET @strSimpleFilter = ''
SET @strFilter = ''
END
IF @Group IS NOT NULL AND @Group != ''
SET @strGroup = ' GROUP BY ' + @Group + ' '
ELSE
SET @strGroup = ''
/*执行查询语句*/
EXEC(
'
DECLARE @SortColumn ' + @type + '
SET ROWCOUNT ' + @strStartRow + '
SELECT @SortColumn= ' + @strSortColumn + ' FROM ' + @Tables + @strFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + '
SET ROWCOUNT ' + @strPageSize + '
SELECT ' + @Fields + ' FROM ' + @Tables + ' WHERE ' + @strSortColumn + @operator + ' @SortColumn ' + @strSimpleFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + '
'
)
GO
效果演示:http: //www.cn5135.com /_App /Opportunities /QueryResult.aspx
CREATE PROCEDURE CN5135_SP_Pagination
/*
***************************************************************
** 千万数量级分页存储过程 **
***************************************************************
参数说明:
1.Tables :表名称,视图
2.PrimaryKey :主关键字
3.Sort :排序语句,不带Order By 比如:NewsID Desc,OrderRows Asc
4.CurrentPage :当前页码
5.PageSize :分页尺寸
6.Filter :过滤语句,不带Where
7.Group :Group语句,不带Group By
效果演示:http://www.cn5135.com/_App/Opportunities/QueryResult.aspx
***************************************************************/
(
@Tables varchar( 1000),
@PrimaryKey varchar( 100),
@Sort varchar( 200) = NULL,
@CurrentPage int = 1,
@PageSize int = 10,
@Fields varchar( 1000) = ' * ',
@Filter varchar( 1000) = NULL,
@Group varchar( 1000) = NULL
)
AS
/*默认排序*/
IF @Sort IS NULL OR @Sort = ''
SET @Sort = @PrimaryKey
DECLARE @SortTable varchar( 100)
DECLARE @SortName varchar( 100)
DECLARE @strSortColumn varchar( 200)
DECLARE @operator char( 2)
DECLARE @type varchar( 100)
DECLARE @prec int
/*设定排序语句.*/
IF CHARINDEX( ' DESC ', @Sort) > 0
BEGIN
SET @strSortColumn = REPLACE( @Sort, ' DESC ', '')
SET @operator = ' <= '
END
ELSE
BEGIN
IF CHARINDEX( ' ASC ', @Sort) = 0
SET @strSortColumn = REPLACE( @Sort, ' ASC ', '')
SET @operator = ' >= '
END
IF CHARINDEX( ' . ', @strSortColumn) > 0
BEGIN
SET @SortTable = SUBSTRING( @strSortColumn, 0, CHARINDEX( ' . ', @strSortColumn))
SET @SortName = SUBSTRING( @strSortColumn, CHARINDEX( ' . ', @strSortColumn) + 1, LEN( @strSortColumn))
END
ELSE
BEGIN
SET @SortTable = @Tables
SET @SortName = @strSortColumn
END
SELECT @type =t.name, @prec =c.prec
FROM sysobjects o
JOIN syscolumns c on o.id =c.id
JOIN systypes t on c.xusertype =t.xusertype
WHERE o.name = @SortTable AND c.name = @SortName
IF CHARINDEX( ' char ', @type) > 0
SET @type = @type + ' ( ' + CAST( @prec AS varchar) + ' ) '
DECLARE @strPageSize varchar( 50)
DECLARE @strStartRow varchar( 50)
DECLARE @strFilter varchar( 1000)
DECLARE @strSimpleFilter varchar( 1000)
DECLARE @strGroup varchar( 1000)
/*默认当前页*/
IF @CurrentPage < 1
SET @CurrentPage = 1
/*设置分页参数.*/
SET @strPageSize = CAST( @PageSize AS varchar( 50))
SET @strStartRow = CAST((( @CurrentPage - 1) * @PageSize + 1) AS varchar( 50))
/*筛选以及分组语句.*/
IF @Filter IS NOT NULL AND @Filter != ''
BEGIN
SET @strFilter = ' WHERE ' + @Filter + ' '
SET @strSimpleFilter = ' AND ' + @Filter + ' '
END
ELSE
BEGIN
SET @strSimpleFilter = ''
SET @strFilter = ''
END
IF @Group IS NOT NULL AND @Group != ''
SET @strGroup = ' GROUP BY ' + @Group + ' '
ELSE
SET @strGroup = ''
/*执行查询语句*/
EXEC(
'
DECLARE @SortColumn ' + @type + '
SET ROWCOUNT ' + @strStartRow + '
SELECT @SortColumn= ' + @strSortColumn + ' FROM ' + @Tables + @strFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + '
SET ROWCOUNT ' + @strPageSize + '
SELECT ' + @Fields + ' FROM ' + @Tables + ' WHERE ' + @strSortColumn + @operator + ' @SortColumn ' + @strSimpleFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + '
'
)
GO
注:
1)如表名参数为多表连接时,sort列必须指定表名;
2)只支持单字段排序,有朋友如果问为什么不做成可以多字段排序的,理论上确实有这种可能性,但需要以一定的效率损失为代价,而且会使方法过于复杂,如真有这种需要,完全可以写一个单独的分页存储过程,无论在性能还是复杂度上都比通用要简单.
3) 对非unique字段排序的支持,但必须设定一个PK字段(注:只要是unique字段都可以作为pk字段)
1
if
exists (
select
*
from dbo.sysobjects
where id
=
object_id(N
'
[dbo].[Paging_RowCount]
')
and
OBJECTPROPERTY(id, N
'
IsProcedure
')
=
1)
2 drop procedure [ dbo ]. [ Paging_RowCount ]
3 GO
4
5 SET QUOTED_IDENTIFIER ON
6 GO
7 SET ANSI_NULLS ON
8 GO
9 -- -------------------------------------------------------------
10 -- 分页存储过程(使用RowCount) --edit by SiBen
11 -- summary:
12 -- 获取表或表集合的分页数据
13 -- 当多表连接时,sort列必须指定表名
14 -- -------------------------------------------------------------
15
16 CREATE PROCEDURE Paging_RowCount
17 (
18 @Tables varchar( 1000),
19 @PK varchar( 100),
20 @Sort varchar( 200) = NULL,
21 @PageNumber int = 1,
22 @PageSize int = 10,
23 @Fields varchar( 1000) = ' * ',
24 @Filter varchar( 1000) = NULL,
25 @Group varchar( 1000) = NULL,
26 @RecordCount int = 0 output
27 )
28 AS
29
30 /*Default Sorting*/
31 IF @Sort IS NULL OR @Sort = ''
32 SET @Sort = @PK
33
34 /*Find the @PK type*/
35 DECLARE @SortTable varchar( 100)
36 DECLARE @SortName varchar( 100)
37 DECLARE @strSortColumn varchar( 200)
38 DECLARE @operator char( 2)
39 DECLARE @type varchar( 100)
40 DECLARE @prec int
41
42 /*Set sorting variables.*/
43 IF CHARINDEX( ' DESC ', @Sort) > 0
44 BEGIN
45 SET @strSortColumn = REPLACE( @Sort, ' DESC ', '')
46 SET @operator = ' < '
47 END
48 ELSE
49 BEGIN
50 IF CHARINDEX( ' ASC ', @Sort) > 0
51 SET @strSortColumn = REPLACE( @Sort, ' ASC ', '')
52 ELSE
53 SET @strSortColumn = @Sort
54
55 SET @operator = ' > '
56 END
57
58
59 IF CHARINDEX( ' . ', @strSortColumn) > 0
60 BEGIN
61 SET @SortTable = SUBSTRING( @strSortColumn, 0, CHARINDEX( ' . ', @strSortColumn))
62 SET @SortName = SUBSTRING( @strSortColumn, CHARINDEX( ' . ', @strSortColumn) + 1, LEN( @strSortColumn))
63 END
64 ELSE
65 BEGIN
66 SET @SortTable = @Tables
67 SET @SortName = @strSortColumn
68 END
69
70 SELECT @type =t.name, @prec =c.prec
71 FROM sysobjects o
72 JOIN syscolumns c on o.id =c.id
73 JOIN systypes t on c.xusertype =t.xusertype
74 WHERE o.name = @SortTable AND c.name = @SortName
75
76 IF CHARINDEX( ' char ', @type) > 0
77 SET @type = @type + ' ( ' + CAST( @prec AS varchar) + ' ) '
78
79 DECLARE @strPageSize varchar( 50)
80 DECLARE @strStartRow varchar( 50)
81 DECLARE @strFilter varchar( 1000)
82 DECLARE @strSimpleFilter varchar( 1000)
83 DECLARE @strGroup varchar( 1000)
84
85 /*Default Page Number*/
86 IF @PageNumber < 1
87 SET @PageNumber = 1
88
89 /*Set paging variables.*/
90 SET @strPageSize = CAST( @PageSize AS varchar( 50))
91 SET @strStartRow = CAST((( @PageNumber - 1) * @PageSize + 1) AS varchar( 50))
92
93 /*Set filter & group variables.*/
94 IF @Filter IS NOT NULL AND @Filter != ''
95 BEGIN
96 SET @strFilter = ' WHERE ' + @Filter + ' '
97 SET @strSimpleFilter = ' AND ' + @Filter + ' '
98 END
99 ELSE
100 BEGIN
101 SET @strSimpleFilter = ''
102 SET @strFilter = ''
103 END
104 IF @Group IS NOT NULL AND @Group != ''
105 SET @strGroup = ' GROUP BY ' + @Group + ' '
106 ELSE
107 SET @strGroup = ''
108
109 /*Get rows count.*/
110 DECLARE @str_Count_SQL nvarchar( 500)
111 SET @str_Count_SQL = ' SELECT @TotalCount=count(*) FROM ' + @Tables + @strFilter
112 EXEC sp_executesql @str_Count_SQL,N ' @TotalCount int=0 output ', @RecordCount output
113
114 /*Execute dynamic query*/
115 IF @Sort = @PK
116 BEGIN
117 EXEC(
118 '
119 DECLARE @SortColumn ' + @type + '
120 SET ROWCOUNT ' + @strStartRow + '
121 SELECT @SortColumn= ' + @strSortColumn + ' FROM ' + @Tables + @strFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + '
122 SET ROWCOUNT ' + @strPageSize + '
123 SELECT ' + @Fields + ' FROM ' + @Tables + ' WHERE ' + @strSortColumn + @operator + ' = @SortColumn ' + @strSimpleFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + '
124 '
125 )
126 END
127 ELSE
128 BEGIN
129 EXEC(
130 '
131 DECLARE @SortColumn ' + @type + '
132 DECLARE @SortNullValue ' + @type + '
133 DECLARE @PKStartValue int
134 SET @SortNullValue=CAST( '''' as ' + @type + ' )
135 SET ROWCOUNT ' + @strStartRow + '
136 SELECT @SortColumn= isNull( ' + @strSortColumn + ' ,@SortNullValue), @PKStartValue = ' + @PK + ' FROM ' + @Tables + @strFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + ' , ' + @PK + ' Desc
137 SET ROWCOUNT ' + @strPageSize + '
138 SELECT ' + @Fields + ' FROM ' + @Tables + ' WHERE (isNull( ' + @strSortColumn + ' ,@SortNullValue) ' + @operator + ' @SortColumn or (isNull( ' + @strSortColumn + ' ,@SortNullValue)=@SortColumn and ' + @PK + ' <=@PKStartValue)) ' + @strSimpleFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + ' , ' + @PK + ' Desc
139 '
140 )
141 END
142 GO
143 SET QUOTED_IDENTIFIER OFF
144 GO
145 SET ANSI_NULLS ON
146 GO
147
148
http://www.codeproject.com/aspnet/PagingLarge.asp
2 drop procedure [ dbo ]. [ Paging_RowCount ]
3 GO
4
5 SET QUOTED_IDENTIFIER ON
6 GO
7 SET ANSI_NULLS ON
8 GO
9 -- -------------------------------------------------------------
10 -- 分页存储过程(使用RowCount) --edit by SiBen
11 -- summary:
12 -- 获取表或表集合的分页数据
13 -- 当多表连接时,sort列必须指定表名
14 -- -------------------------------------------------------------
15
16 CREATE PROCEDURE Paging_RowCount
17 (
18 @Tables varchar( 1000),
19 @PK varchar( 100),
20 @Sort varchar( 200) = NULL,
21 @PageNumber int = 1,
22 @PageSize int = 10,
23 @Fields varchar( 1000) = ' * ',
24 @Filter varchar( 1000) = NULL,
25 @Group varchar( 1000) = NULL,
26 @RecordCount int = 0 output
27 )
28 AS
29
30 /*Default Sorting*/
31 IF @Sort IS NULL OR @Sort = ''
32 SET @Sort = @PK
33
34 /*Find the @PK type*/
35 DECLARE @SortTable varchar( 100)
36 DECLARE @SortName varchar( 100)
37 DECLARE @strSortColumn varchar( 200)
38 DECLARE @operator char( 2)
39 DECLARE @type varchar( 100)
40 DECLARE @prec int
41
42 /*Set sorting variables.*/
43 IF CHARINDEX( ' DESC ', @Sort) > 0
44 BEGIN
45 SET @strSortColumn = REPLACE( @Sort, ' DESC ', '')
46 SET @operator = ' < '
47 END
48 ELSE
49 BEGIN
50 IF CHARINDEX( ' ASC ', @Sort) > 0
51 SET @strSortColumn = REPLACE( @Sort, ' ASC ', '')
52 ELSE
53 SET @strSortColumn = @Sort
54
55 SET @operator = ' > '
56 END
57
58
59 IF CHARINDEX( ' . ', @strSortColumn) > 0
60 BEGIN
61 SET @SortTable = SUBSTRING( @strSortColumn, 0, CHARINDEX( ' . ', @strSortColumn))
62 SET @SortName = SUBSTRING( @strSortColumn, CHARINDEX( ' . ', @strSortColumn) + 1, LEN( @strSortColumn))
63 END
64 ELSE
65 BEGIN
66 SET @SortTable = @Tables
67 SET @SortName = @strSortColumn
68 END
69
70 SELECT @type =t.name, @prec =c.prec
71 FROM sysobjects o
72 JOIN syscolumns c on o.id =c.id
73 JOIN systypes t on c.xusertype =t.xusertype
74 WHERE o.name = @SortTable AND c.name = @SortName
75
76 IF CHARINDEX( ' char ', @type) > 0
77 SET @type = @type + ' ( ' + CAST( @prec AS varchar) + ' ) '
78
79 DECLARE @strPageSize varchar( 50)
80 DECLARE @strStartRow varchar( 50)
81 DECLARE @strFilter varchar( 1000)
82 DECLARE @strSimpleFilter varchar( 1000)
83 DECLARE @strGroup varchar( 1000)
84
85 /*Default Page Number*/
86 IF @PageNumber < 1
87 SET @PageNumber = 1
88
89 /*Set paging variables.*/
90 SET @strPageSize = CAST( @PageSize AS varchar( 50))
91 SET @strStartRow = CAST((( @PageNumber - 1) * @PageSize + 1) AS varchar( 50))
92
93 /*Set filter & group variables.*/
94 IF @Filter IS NOT NULL AND @Filter != ''
95 BEGIN
96 SET @strFilter = ' WHERE ' + @Filter + ' '
97 SET @strSimpleFilter = ' AND ' + @Filter + ' '
98 END
99 ELSE
100 BEGIN
101 SET @strSimpleFilter = ''
102 SET @strFilter = ''
103 END
104 IF @Group IS NOT NULL AND @Group != ''
105 SET @strGroup = ' GROUP BY ' + @Group + ' '
106 ELSE
107 SET @strGroup = ''
108
109 /*Get rows count.*/
110 DECLARE @str_Count_SQL nvarchar( 500)
111 SET @str_Count_SQL = ' SELECT @TotalCount=count(*) FROM ' + @Tables + @strFilter
112 EXEC sp_executesql @str_Count_SQL,N ' @TotalCount int=0 output ', @RecordCount output
113
114 /*Execute dynamic query*/
115 IF @Sort = @PK
116 BEGIN
117 EXEC(
118 '
119 DECLARE @SortColumn ' + @type + '
120 SET ROWCOUNT ' + @strStartRow + '
121 SELECT @SortColumn= ' + @strSortColumn + ' FROM ' + @Tables + @strFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + '
122 SET ROWCOUNT ' + @strPageSize + '
123 SELECT ' + @Fields + ' FROM ' + @Tables + ' WHERE ' + @strSortColumn + @operator + ' = @SortColumn ' + @strSimpleFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + '
124 '
125 )
126 END
127 ELSE
128 BEGIN
129 EXEC(
130 '
131 DECLARE @SortColumn ' + @type + '
132 DECLARE @SortNullValue ' + @type + '
133 DECLARE @PKStartValue int
134 SET @SortNullValue=CAST( '''' as ' + @type + ' )
135 SET ROWCOUNT ' + @strStartRow + '
136 SELECT @SortColumn= isNull( ' + @strSortColumn + ' ,@SortNullValue), @PKStartValue = ' + @PK + ' FROM ' + @Tables + @strFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + ' , ' + @PK + ' Desc
137 SET ROWCOUNT ' + @strPageSize + '
138 SELECT ' + @Fields + ' FROM ' + @Tables + ' WHERE (isNull( ' + @strSortColumn + ' ,@SortNullValue) ' + @operator + ' @SortColumn or (isNull( ' + @strSortColumn + ' ,@SortNullValue)=@SortColumn and ' + @PK + ' <=@PKStartValue)) ' + @strSimpleFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + ' , ' + @PK + ' Desc
139 '
140 )
141 END
142 GO
143 SET QUOTED_IDENTIFIER OFF
144 GO
145 SET ANSI_NULLS ON
146 GO
147
148
邹建的存储过程
ALTER PROC PageView
@tbname sysname, -- 要分页显示的表名
@FieldKey sysname, -- 用于定位记录的主键(惟一键)字段,只能是单个字段
@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
-- 用于指定排序顺序
@Where nvarchar( 1000) = '', -- 查询条件
@PageCount int OUTPUT -- 总页数
AS
DECLARE @sql nvarchar( 4000)
SET NOCOUNT ON
-- 检查对象是否有效
IF OBJECT_ID( @tbname) IS NULL
BEGIN
RAISERROR(N ' 对象"%s"不存在 ', 1, 16, @tbname)
RETURN
END
IF OBJECTPROPERTY( OBJECT_ID( @tbname),N ' IsTable ') = 0
AND OBJECTPROPERTY( OBJECT_ID( @tbname),N ' IsView ') = 0
AND OBJECTPROPERTY( OBJECT_ID( @tbname),N ' IsTableFunction ') = 0
BEGIN
RAISERROR(N ' "%s"不是表、视图或者表值函数 ', 1, 16, @tbname)
RETURN
END
-- 分页字段检查
IF ISNULL( @FieldKey,N '') = ''
BEGIN
RAISERROR(N ' 分页处理需要主键(或者惟一键) ', 1, 16)
RETURN
END
-- 其他参数检查及规范
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( @Where,N '') =N ''
SET @Where =N ''
ELSE
SET @Where =N ' WHERE ( ' + @Where +N ' ) '
-- 如果@PageCount为NULL值,则计算总页数(这样设计可以只在第一次计算总页数,以后调用时,把总页数传回给存储过程,避免再次计算总页数,对于不想计算总页数的处理而言,可以给@PageCount赋值)
IF @PageCount IS NULL
BEGIN
SET @sql =N ' SELECT @PageCount=COUNT(*) '
+N ' FROM ' + @tbname
+N ' ' + @Where
EXEC sp_executesql @sql,N ' @PageCount int OUTPUT ', @PageCount OUTPUT
SET @PageCount =( @PageCount + @PageSize - 1) / @PageSize
END
-- 计算分页显示的TOPN值
DECLARE @TopN varchar( 20), @TopN1 varchar( 20)
SELECT @TopN = @PageSize,
@TopN1 = @PageCurrent * @PageSize
-- 第一页直接显示
IF @PageCurrent = 1
EXEC(N ' SELECT TOP ' + @TopN
+N ' ' + @FieldShow
+N ' FROM ' + @tbname
+N ' ' + @Where
+N ' ' + @FieldOrder)
ELSE
BEGIN
SELECT @PageCurrent = @TopN1,
@sql =N ' SELECT @n=@n-1,@s=CASE WHEN @n< ' + @TopN
+N ' THEN @s+N '' , '' +QUOTENAME(RTRIM(CAST( ' + @FieldKey
+N ' as varchar(8000))),N '''''''' ) ELSE N '''' END FROM ' + @tbname
+N ' ' + @Where
+N ' ' + @FieldOrder
SET ROWCOUNT @PageCurrent
EXEC sp_executesql @sql,
N ' @n int,@s nvarchar(4000) OUTPUT ',
@PageCurrent, @sql OUTPUT
SET ROWCOUNT 0
IF @sql =N ''
EXEC(N ' SELECT TOP 0 '
+N ' ' + @FieldShow
+N ' FROM ' + @tbname)
ELSE
BEGIN
SET @sql = STUFF( @sql, 1, 1,N '')
-- 执行查询
EXEC(N ' SELECT TOP ' + @TopN
+N ' ' + @FieldShow
+N ' FROM ' + @tbname
+N ' WHERE ' + @FieldKey
+N ' IN( ' + @sql
+N ' ) ' + @FieldOrder)
END
END
ALTER PROC PageView
@tbname sysname, -- 要分页显示的表名
@FieldKey sysname, -- 用于定位记录的主键(惟一键)字段,只能是单个字段
@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
-- 用于指定排序顺序
@Where nvarchar( 1000) = '', -- 查询条件
@PageCount int OUTPUT -- 总页数
AS
DECLARE @sql nvarchar( 4000)
SET NOCOUNT ON
-- 检查对象是否有效
IF OBJECT_ID( @tbname) IS NULL
BEGIN
RAISERROR(N ' 对象"%s"不存在 ', 1, 16, @tbname)
RETURN
END
IF OBJECTPROPERTY( OBJECT_ID( @tbname),N ' IsTable ') = 0
AND OBJECTPROPERTY( OBJECT_ID( @tbname),N ' IsView ') = 0
AND OBJECTPROPERTY( OBJECT_ID( @tbname),N ' IsTableFunction ') = 0
BEGIN
RAISERROR(N ' "%s"不是表、视图或者表值函数 ', 1, 16, @tbname)
RETURN
END
-- 分页字段检查
IF ISNULL( @FieldKey,N '') = ''
BEGIN
RAISERROR(N ' 分页处理需要主键(或者惟一键) ', 1, 16)
RETURN
END
-- 其他参数检查及规范
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( @Where,N '') =N ''
SET @Where =N ''
ELSE
SET @Where =N ' WHERE ( ' + @Where +N ' ) '
-- 如果@PageCount为NULL值,则计算总页数(这样设计可以只在第一次计算总页数,以后调用时,把总页数传回给存储过程,避免再次计算总页数,对于不想计算总页数的处理而言,可以给@PageCount赋值)
IF @PageCount IS NULL
BEGIN
SET @sql =N ' SELECT @PageCount=COUNT(*) '
+N ' FROM ' + @tbname
+N ' ' + @Where
EXEC sp_executesql @sql,N ' @PageCount int OUTPUT ', @PageCount OUTPUT
SET @PageCount =( @PageCount + @PageSize - 1) / @PageSize
END
-- 计算分页显示的TOPN值
DECLARE @TopN varchar( 20), @TopN1 varchar( 20)
SELECT @TopN = @PageSize,
@TopN1 = @PageCurrent * @PageSize
-- 第一页直接显示
IF @PageCurrent = 1
EXEC(N ' SELECT TOP ' + @TopN
+N ' ' + @FieldShow
+N ' FROM ' + @tbname
+N ' ' + @Where
+N ' ' + @FieldOrder)
ELSE
BEGIN
SELECT @PageCurrent = @TopN1,
@sql =N ' SELECT @n=@n-1,@s=CASE WHEN @n< ' + @TopN
+N ' THEN @s+N '' , '' +QUOTENAME(RTRIM(CAST( ' + @FieldKey
+N ' as varchar(8000))),N '''''''' ) ELSE N '''' END FROM ' + @tbname
+N ' ' + @Where
+N ' ' + @FieldOrder
SET ROWCOUNT @PageCurrent
EXEC sp_executesql @sql,
N ' @n int,@s nvarchar(4000) OUTPUT ',
@PageCurrent, @sql OUTPUT
SET ROWCOUNT 0
IF @sql =N ''
EXEC(N ' SELECT TOP 0 '
+N ' ' + @FieldShow
+N ' FROM ' + @tbname)
ELSE
BEGIN
SET @sql = STUFF( @sql, 1, 1,N '')
-- 执行查询
EXEC(N ' SELECT TOP ' + @TopN
+N ' ' + @FieldShow
+N ' FROM ' + @tbname
+N ' WHERE ' + @FieldKey
+N ' IN( ' + @sql
+N ' ) ' + @FieldOrder)
END
END
本文转自高海东博客园博客,原文链接http://www.cnblogs.com/ghd258/archive/2006/01/11/314988.html,如需转载请自行联系原作者