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分页存储过程:C#中常用的分页存储过程总绪

来源: 发布时间:星期日, 2009年8月16日 浏览:9次 评论:0
表中主键必须为标识列[ID] IDENTITY (1,1)//每次自增
1.分页方案:(利用Not In和SELECT TOP分页)
语句形式:
SELECT TOP 10 *
FROM TestTable
WHERE (ID NOT IN
(SELECT TOP 20 id
FROM TestTable
ORDER BY id))
ORDER BY ID


SELECT TOP 页大小 *
FROM TestTable
WHERE (ID NOT IN
(SELECT TOP 页大小*页数 id
FROM 表
ORDER BY id))
ORDER BY ID
2.分页方案 2:(利用ID大于多少和SELECT TOP分页)
语句形式:
SELECT TOP 10 *
FROM TestTable
WHERE (ID >
(SELECT MAX(id)
FROM (SELECT TOP 20 id
FROM TestTable
ORDER BY id) AS T))
ORDER BY ID


SELECT TOP 页大小 *
FROM TestTable
WHERE (ID >
(SELECT MAX(id)
FROM (SELECT TOP 页大小*页数 id
FROM 表
ORDER BY id) AS T))
ORDER BY ID
3.分页方案 3:(利用SQL游标存储过程分页)

create procedure SqlPager
@sqlstr nvarchar(4000), --查询
@currentpage , --第N页
@pagesize --每页行数
as
nocount _disibledevent=>select ceiling(1.0*@rowcount/@pagesize) as 总页数--,@rowcount as 总行数,@currentpage as 当前页
@currentpage=(@currentpage-1)*@pagesize+1
exec sp_cursorfetch @P1,16,@currentpage,@pagesize
exec sp_cursorclose @P1
nocount off
4.CREATE Procedure FramWorkPage
@TableName varchar(50), --表名
@Fields varchar(5000) = '*', --字段名(全部字段为*)
@OrderField varchar(5000), --排序字段(必须!支持多字段)
@sqlWhere varchar(5000) = Null,--条件语句(不用加where)
@pageSize , --每页多少条记录
@pageIndex = 1 , --指定当前为第几页
@TotalPage output, --返回条数
@OrderType bit -- 设置排序类型,1 升序 0 值则降序
as
begin
declare @strOrder varchar(400) -- 排序类型

Begin Tran --开始事务
Declare @sql nvarchar(4000);
Declare @totalRecord ;
--计算总记录数
(@SqlWhere ='''' or @SqlWhere='' or @sqlWhere is NULL)
@sql = 'select @totalRecord = count(*) from ' + @TableName

@sql = 'select @totalRecord = count(*) from ' + @TableName + ' where ' + @sqlWhere
EXEC sp_executesql @sql,N'@totalRecord OUTPUT',@totalRecord OUTPUT--计算总记录数

--计算总页数

select @TotalPage=@totalRecord --CEILING((@totalRecord+0.0)/@PageSize)

@OrderType = 0
begin
@strOrder = ' order by [' + @OrderField +'] desc'
--如果@OrderType是0就执行降序这句很重要!
end

begin
@strOrder = ' order by [' + @OrderField +'] asc'
end

(@SqlWhere ='''' or @SqlWhere='' or @sqlWhere is NULL)
@sql = 'Select * FROM (select ROW_NUMBER Over( '+@strOrder+' ) as rowId,' + @Fields + ' from ' + @TableName

@sql = 'Select * FROM (select ROW_NUMBER Over( '+@strOrder+' ) as rowId,' + @Fields + ' from ' + @TableName + ' where ' + @SqlWhere
--处理页数超出范围情况
@PageIndex<=0
Set @pageIndex = 1

@pageIndex>@TotalPage
Set @pageIndex = @TotalPage

--处理开始点和结束点
Declare @StartRecord
Declare @EndRecord

@StartRecord = (@pageIndex-1)*@PageSize + 1
@EndRecord = @StartRecord + @pageSize - 1

@OrderType = 0
begin
@strOrder = ' order by rowid desc'
--如果@OrderType是0就执行降序这句很重要!
end

begin
@strOrder = ' order by rowid asc'
end
--继续合成sql语句
@Sql = @Sql + ') as ' + @TableName + ' where rowId between ' + Convert(varchar(50),@StartRecord) + ' and ' + Convert(varchar(50),@EndRecord) + ' '+@strOrder
-- pr @sql
Exec(@Sql)
---------------------------------------------------
If @@Error <> 0
Begin
RollBack Tran
Return -1
End
Else
Begin
Commit Tran
Return @totalRecord ---返回记录总数
End
end

通过上面这些东西学习我想定可以找到种满意答案
0

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