千万数量级分页存储过程代码

本文主要是介绍千万数量级分页存储过程代码，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

/*(11)==============================================================================
*sql server中千万数量级分页存储过程代码
================================================================================*/


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 




--动态查询输出数据
declare @sql1 nvarchar(200),@sql2 nvarchar(200)
declare @count nvarchar(100);
set @sql1 = 'SELECT CONVERT(varchar(100), GETDATE(), 0)'
set @sql2 = 'SELECT @count = CONVERT(varchar(100), GETDATE(), 0)'
exec sp_executesql  @sql2,N'@count nvarchar(50) out',@count out
print @sql1 +'：'+ @count

这篇关于千万数量级分页存储过程代码的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！

---