请高人修改一下这个号称千万数量级的分页存储过程
存储过程内容如下:
CREATE PROCEDURE XEN_SP_Pagination
/*
参数说明:
1.Tables :表名称,视图
2.Topnum :总查询条数
2.Fields :查询字段,默认*
3.PrimaryKey :主关键字
4.Sort :排序语句,不带Order By 比如:NewsID Desc,OrderRows Asc
5.CurrentPage :当前页码
6.PageSize :分页尺寸
7.Filter :过滤语句,不带Where
8.Group :Group语句,不带Group By
***************************************************************/
(
@Tables varchar(1000),
@PrimaryKey varchar(100),
@Sort varchar(200) = NULL,
@CurrentPage int = 1,
@PageSize int = 10,
@Topnum varchar(10) = NULL,
@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)
IF @Topnum IS NOT NULL AND @Topnum != ' '
begin
set @Topnum = 'top ' +@Topnum
end
/*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 ' + @Topnum + ' @SortColumn= ' + @strSortColumn + ' FROM ' + @Tables + @strFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + '
SET ROWCOUNT ' + @strPageSize + '
SELECT ' + @Topnum + @Fields + ' FROM ' + @Tables + ' WHERE ' + @strSortColumn + @operator + ' @SortColumn ' + @strSimpleFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + '
'
)
GO
我想让其返回2个表,返回的第一个表 是数据分页查询的内容,第二个表是返回的总记录数和分页数
[解决办法]
这个分页存储过程确实可以对千万级的数据量进行分页,但是性能非常差!在小数据量下自己玩玩还行,真正生产场景这种通用分页存储过程没有用的!