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一个通用分页存储过程

时间:2014-03-22 19:18:43      阅读:501      评论:0      收藏:0      [点我收藏+]

  今天把项目中的存储过程抠出来学习了下,发现确实是一个可以通吃全部的分页存储过程。

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Create PROCEDURE [dbo].[SqlDataPaging]
 @tbName varchar(255),              --视图名    此处为自己定义的视图 所以该存储过程才能通吃全部  就是不晓得性能如何
 @tbFields varchar(1000) = ‘*‘,     --字段名(全部字段为*)
 @orderFiled varchar(5000),         --排序字段(必须!支持多字段)
 @orderType int,                    --排序类型,1是升序,0是降序
 @strWhere varchar(5000) = Null,    --条件语句(不用加where)
 @pageSize int,                     --每页多少条记录
 @pageIndex int = 1,                --指定当前为第几页
 @pageRecord int output             --输出记录总数
AS
BEGIN
    Begin Tran --开始事务  
 
    Declare @sql nvarchar(4000)
    Declare @TotalPage int          --返回总页数
 
    --计算总记录数
    if (@strWhere = ‘‘ or @strWhere = NULL)
        set @sql = ‘select @pageRecord = count(*) from ‘ + @tbName
    else
        set @sql = ‘select @pageRecord = count(*) from ‘ + @tbName + ‘  where ‘ + @strWhere
    EXEC sp_executesql @sql,N‘@pageRecord int OUTPUT‘,@pageRecord OUTPUT     
 
    --计算总页数
    select @TotalPage=CEILING((@pageRecord+0.0)/@PageSize)
 
    if (@strWhere = ‘‘ or @strWhere = NULL)
        if (@orderType = 1)
            set @sql = ‘Select * FROM (select ROW_NUMBER() Over(order by ‘ + @orderFiled + ‘) as rowId,‘ + @tbFields + ‘ from ‘ + @tbName
        else
            set @sql = ‘Select * FROM (select ROW_NUMBER() Over(order by ‘ + @orderFiled + ‘ desc) as rowId,‘ + @tbFields + ‘ from ‘ + @tbName
    else
        if (@orderType = 1)
            set @sql = ‘Select * FROM (select ROW_NUMBER() Over(order by ‘ + @orderFiled + ‘) as rowId,‘ + @tbFields + ‘ from ‘ + @tbName + ‘ where ‘ + @strWhere
        else
            set @sql = ‘Select * FROM (select ROW_NUMBER() Over(order by ‘ + @orderFiled + ‘ desc) as rowId,‘ + @tbFields + ‘ from ‘ + @tbName + ‘ where ‘ + @strWhere
 
    --处理页数超出范围情况
    if @PageIndex<=0
        Set @pageIndex = 1
     
    if @pageIndex>@TotalPage
        Set @pageIndex = @TotalPage
 
     --处理开始点和结束点
    Declare @StartRecord int
    Declare @EndRecord int
     
    set @StartRecord = (@pageIndex-1)*@PageSize + 1
    set @EndRecord = @StartRecord + @pageSize - 1
 
    --继续合成sql语句
    set @Sql = @Sql + ‘) as t where rowId between ‘ + Convert(varchar(50),@StartRecord) + ‘ and ‘ Convert(varchar(50),@EndRecord)
    print @sql
    exec(@Sql)
    ---------------------------------------------------
    If @@Error <> 0
      Begin
        RollBack Tran
        Return -1
      End
    Else
      Begin
        Commit Tran       
    End
END

  

一个通用分页存储过程,布布扣,bubuko.com

一个通用分页存储过程

原文:http://www.cnblogs.com/Rock-Lee/p/3617517.html

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