sql server中千万数量级分页存储过程代码

2015/06/09 34936
CREATE PROCEDURE CN5135_SP_Pagination 
/* 
*************************************************************** 
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 
***************************************************************/ 
( 
@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
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