• 大量数据分页存储过程(Not In版,比较完美了)


    CREATE PROCEDURE Procedure_Paging
    (
    @tblName nvarchar(1000), ----要显示的表或多个表的连接
    @fldName nvarchar(4000) = '*', ----要显示的字段列表
    @pageSize int = 1, ----每页显示的记录个数
    @page int = 10, ----要显示那一页的记录
    @fldSort nvarchar(4000) = null, ----排序字段列表或条件
    @Sort bit = 0, ----排序方法,0为升序,1为降序(如果是多字段排列descSort指代最后一个排序字段的排列顺序(最后一个排序字段不加排序标记)--程序传参如:' SortA Asc,SortB Desc,SortC ')
    @strCondition nvarchar(4000) = null, ----查询条件,不需where
    @ID nvarchar(1000), ----主表的主键
    @Dist bit = 0, ----是否添加查询字段的 DISTINCT 默认0不添加/1添加
    @pageCount int = 1 output, ----查询结果分页后的总页数
    @Counts int = 1 output ----查询到的记录数
    )
    AS
    SET NOCOUNT ON
    Declare @sqlTmp nvarchar(4000) ----存放动态生成的SQL语句
    Declare @strTmp nvarchar(4000) ----存放取得查询结果总数的查询语句
    Declare @strID nvarchar(1000) ----存放取得查询开头或结尾ID的查询语句

    Declare @strSortType nvarchar(10) ----数据排序规则A
    Declare @strFSortType nvarchar(10) ----数据排序规则B

    Declare @SqlSelect nvarchar(50) ----对含有DISTINCT的查询进行SQL构造
    Declare @SqlCounts nvarchar(50) ----对含有DISTINCT的总数查询进行SQL构造


    if @Dist = 0
    begin
    set @SqlSelect = 'select '
    set @SqlCounts = 'Count(1)'
    end
    else
    begin
    set @SqlSelect = 'select distinct '
    set @SqlCounts = 'Count(DISTINCT '+@ID+')'
    end


    if @Sort=0
    begin
    set @strFSortType=' ASC '
    set @strSortType=' DESC '
    end
    else
    begin
    set @strFSortType=' DESC '
    set @strSortType=' ASC '
    end


    --------生成查询语句--------
    --此处@strTmp为取得查询结果数量的语句
    if @strCondition is null or @strCondition='' --没有设置显示条件
    begin
    set @sqlTmp = @fldName + ' From ' + @tblName
    set @strTmp = @SqlSelect+' @Counts='+@SqlCounts+' FROM '+@tblName
    set @strID = ' From ' + @tblName
    end
    else
    begin
    set @sqlTmp = + @fldName + 'From ' + @tblName + ' WHERE (1>0) ' + @strCondition
    set @strTmp = @SqlSelect+' @Counts='+@SqlCounts+' FROM '+@tblName + ' WHERE (1>0) ' + @strCondition
    set @strID = ' From ' + @tblName + ' WHERE (1>0) ' + @strCondition
    end

    ----取得查询结果总数量-----
    exec sp_executesql @strTmp,N'@Counts int out ',@Counts out

    print @strTmp

    declare @tmpCounts int
    if @Counts = 0
    set @tmpCounts = 1
    else
    set @tmpCounts = @Counts

    --取得分页总数
    set @pageCount=(@tmpCounts+@pageSize-1)/@pageSize

    /**//**当前页大于总页数 取最后一页**/
    if @page>@pageCount
    set @page=@pageCount

    --/*-----数据分页2分处理-------*/
    declare @pageIndex int --总数/页大小
    declare @lastcount int --总数%页大小

    set @pageIndex = @tmpCounts/@pageSize
    set @lastcount = @tmpCounts%@pageSize
    if @lastcount > 0
    set @pageIndex = @pageIndex + 1
    else
    set @lastcount = @pagesize

    --//***显示分页
    if @strCondition is null or @strCondition='' --没有设置显示条件
    begin
    if @pageIndex<2 or @page<=@pageIndex / 2 + @pageIndex % 2 --前半部分数据处理
    begin
    set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
    +' where '+@ID+' not in('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @ID +' from '+@tblName
    +' order by '+ @fldSort +' '+ @strFSortType+')'
    +' order by '+ @fldSort +' '+ @strFSortType
    end
    else
    begin
    set @page = @pageIndex-@page+1 --后半部分数据处理
    if @page <= 1 --最后一页数据显示
    set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@lastcount as VARCHAR(4))+' '+ @fldName+' from '+@tblName
    +' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
    else
    set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
    +' where '+@ID+' not in('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as Varchar(20)) +' '+ @ID +' from '+@tblName
    +' order by '+ @fldSort +' '+ @strSortType+')'

    +' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
    end
    end

    else --有查询条件
    begin
    if @pageIndex<2 or @page<=@pageIndex / 2 + @pageIndex % 2 --前半部分数据处理
    begin
    set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName +' from '+@tblName
    +' where '+@ID+' not in('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @ID +' from '+@tblName
    +' Where (1>0) ' + @strCondition + ' order by '+ @fldSort +' '+ @strFSortType+')'
    +' ' + @strCondition + ' order by '+ @fldSort +' '+ @strFSortType
    end
    else
    begin
    set @page = @pageIndex-@page+1 --后半部分数据处理
    if @page <= 1 --最后一页数据显示
    set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@lastcount as VARCHAR(4))+' '+ @fldName+' from '+@tblName
    +' where  (1>0) '+ @strCondition +' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
    else
    set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
    +' where '+@ID+' not in('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as Varchar(20)) +' '+ @ID +' from '+@tblName
    +' where  (1>0)  '+ @strCondition +' order by '+ @fldSort +' '+ @strSortType+')'
    + @strCondition +' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
    end
    end

    ------返回查询结果-----
    exec sp_executesql @strTmp
    --print @strTmp
    SET NOCOUNT OFF
    GO

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  • 原文地址:https://www.cnblogs.com/love2wllw/p/1733735.html
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