SqlServer 分页存储过程

SqlServer 分页存储过程

SET ANSI_NULLS ONGOSET QUOTED_IDENTIFIER ONGOCREATE PROCEDURE [dbo].[usp_CommonDataResourcePaged]( @TableName varchar(500), ----要显示的表或多个表的连接 @FieldList varchar(5000) = '*', ----要显示的字段列表 @PageSize int = 20, ----每页显示的记录个数 @PageNumber int = 1, ----要显示那一页的记录 @SortFields varchar(1000) = null, ----排序字段列表或条件 @EnabledSort bit = 0, ----排序方法，0为升序，1为降序(如果是多字段排列Sort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 ') @QueryCondition nvarchar(1500) = null, ----查询条件,不需WHERE @Primarykey varchar(50), ----主表的主键 @EnabledDistinct 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 @RecordCount int = 1 output ----查询到的记录数)AS SET NOCOUNT ON Declare @PrimaryKeyAlias varchar(50) Declare @SqlResult nvarchar(4000) ----存放动态生成的SQL语句 Declare @SqlTotalCount nvarchar(4000) ----存放取得查询结果总数的查询语句 Declare @SqlStartOrEndID nvarchar(3000) ----存放取得查询开头或结尾ID的查询语句 Declare @SortTypeA nvarchar(10) ----数据排序规则A Declare @SortTypeB nvarchar(10) ----数据排序规则B Declare @SqlDistinct nvarchar(50) ----对含有DISTINCT的查询进行SQL构造 Declare @SqlCountDistinct nvarchar(50) ----对含有DISTINCT的总数查询进行SQL构造 declare @ExecuteTime datetime --耗时测试时间差 --如果字段名带有表名或者其他的前缀(literature.tbl_Literatures.ID)，通过(select * from table)显示后，在排序，此时的字段名是不包含前缀的， --所以要处理一下，该方法适合Sql Server，如果要迁移其他数据库上，可以修改获取字段名的方法 DECLARE @ConvertedSortFields varchar(50) IF CHARINDEX('.',@SortFields)>0 BEGIN SELECT @ConvertedSortFields=REVERSE(SUBSTRING(REVERSE(@SortFields),1,CHARINDEX('.',REVERSE(@SortFields))-1)) END ELSE BEGIN SET @ConvertedSortFields=@SortFields END SELECT @ExecuteTime=GETDATE() --在分页的过程中，会涉及到子查询，当子查询根据主键查询后，外层循环再使用该值的时候已经不是第一次赋的值了，此处要做转换，否则会有错误 SET @PrimaryKeyAlias='CustomID' if @EnabledDistinct = 0 begin set @SqlDistinct = 'SELECT ' set @SqlCountDistinct = 'Count(*)' end else begin set @SqlDistinct = 'SELECT DISTINCT ' set @SqlCountDistinct = 'Count(DISTINCT '+@Primarykey+')' end if @EnabledSort=0 begin set @SortTypeB=' ASC ' set @SortTypeA=' DESC ' end else begin set @SortTypeB=' DESC ' set @SortTypeA=' ASC ' end --------生成查询语句-------- --此处@SqlTotalCount为取得查询结果数量的语句 if @QueryCondition is null or @QueryCondition='' or @QueryCondition='''' or LEN(@QueryCondition)<3 --没有设置显示条件 begin set @SqlResult = @FieldList + ' From ' + @TableName set @SqlTotalCount = @SqlDistinct+' @RecordCount='+@SqlCountDistinct+' FROM '+@TableName set @SqlStartOrEndID = ' From ' + @TableName end else begin set @SqlResult = + @FieldList + ' From ' + @TableName + ' WHERE (1>0) and ' + @QueryCondition set @SqlTotalCount = @SqlDistinct+' @RecordCount='+@SqlCountDistinct+' FROM '+@TableName + ' WHERE (1>0) and ' + @QueryCondition set @SqlStartOrEndID = ' From ' + @TableName + ' WHERE (1>0) and ' + @QueryCondition end ----取得查询结果总数量----- exec sp_executesql @SqlTotalCount,N'@RecordCount int out ',@RecordCount out declare @TemporaryRecordCount int --临时统计 if @RecordCount = 0 set @TemporaryRecordCount = 1 else set @TemporaryRecordCount = @RecordCount --取得分页总数 set @PageCount=(@TemporaryRecordCount+@PageSize-1)/@PageSize /**当前页大于总页数 取最后一页**/ if @PageNumber>@PageCount set @PageNumber=@PageCount --/*-----数据分页2分处理-------*/ declare @TemporaryPageCount int --总数/页大小，临时存储总的分页数据 declare @ExtraPageNumber int --总数%页大小 此处用于判断是否有余数，有就增加一页，没有就保持原有分页总数 set @TemporaryPageCount = @TemporaryRecordCount/@PageSize set @ExtraPageNumber = @TemporaryRecordCount%@PageSize --如果对总记录条数和页大小取余，结果大于零，分页数量需要加一 if @ExtraPageNumber > 0 BEGIN set @TemporaryPageCount = @TemporaryPageCount + 1 END ELSE BEGIN SET @ExtraPageNumber=@PageSize END --//***显示分页 if @QueryCondition is null or @QueryCondition='' or @QueryCondition='''' or LEN(@QueryCondition)<3 --没有设置显示条件 begin if @TemporaryPageCount<2 or @PageNumber<=@TemporaryPageCount / 2 + @TemporaryPageCount % 2 --前半部分数据处理 begin if @PageNumber=1 set @SqlTotalCount=@SqlDistinct+' TOP '+ CAST(@PageSize as VARCHAR(4))+' '+ @FieldList+' FROM '+@TableName+' ORDER BY '+ @SortFields +' '+ @SortTypeB else begin if @EnabledSort=1 begin set @SqlTotalCount=@SqlDistinct+' TOP '+ CAST(@PageSize as VARCHAR(4))+' '+ @FieldList+' FROM '+@TableName +' WHERE '+@Primarykey+' <(SELECT MIN('+ @PrimaryKeyAlias +') FROM ('+ @SqlDistinct+' TOP '+ CAST(@PageSize*(@PageNumber-1) as Varchar(20)) +' '+ @Primarykey +' AS '+@PrimaryKeyAlias+' FROM '+@TableName +' ORDER BY '+ @SortFields +' '+ @SortTypeB+') AS TBMinID)'+' ORDER BY '+ @SortFields +' '+ @SortTypeB end else begin set @SqlTotalCount=@SqlDistinct+' TOP '+ CAST(@PageSize as VARCHAR(4))+' '+ @FieldList+' FROM '+@TableName +' WHERE '+@Primarykey+' >(SELECT MAX('+ @PrimaryKeyAlias +') FROM ('+ @SqlDistinct+' TOP '+ CAST(@PageSize*(@PageNumber-1) as Varchar(20)) +' '+ @Primarykey +' AS '+@PrimaryKeyAlias+' FROM '+@TableName +' ORDER BY '+ @SortFields +' '+ @SortTypeB+') AS TBMinID)'+' ORDER BY '+ @SortFields +' '+ @SortTypeB end end end else begin set @PageNumber = @TemporaryPageCount-@PageNumber+1 --后半部分数据处理 if @PageNumber <= 1 --最后一页数据显示 begin set @SqlTotalCount=@SqlDistinct+' * FROM ('+@SqlDistinct+' TOP '+ CAST(@ExtraPageNumber as VARCHAR(4))+' '+ @FieldList+' FROM '+@TableName+' ORDER BY '+ @SortFields +' '+ @SortTypeA+') AS TempTB'+' ORDER BY '+ @ConvertedSortFields +' '+ @SortTypeB end else if @EnabledSort=1 begin set @SqlTotalCount=@SqlDistinct+' * FROM ('+@SqlDistinct+' TOP '+ CAST(@PageSize as VARCHAR(4))+' '+ @FieldList+' FROM '+@TableName +' WHERE '+@Primarykey+' >(SELECT MAX('+ @PrimaryKeyAlias +') FROM('+ @SqlDistinct+' TOP '+ CAST(@PageSize*(@PageNumber-2)+@ExtraPageNumber as Varchar(20)) +' '+ @Primarykey +' AS '+@PrimaryKeyAlias+' FROM '+@TableName+' ORDER BY '+ @SortFields +' '+ @SortTypeA+') AS TBMaxID)'+' ORDER BY '+ @SortFields +' '+ @SortTypeA+') AS TempTB'+' ORDER BY '+ @ConvertedSortFields +' '+ @SortTypeB end else begin set @SqlTotalCount=@SqlDistinct+' * FROM ('+@SqlDistinct+' TOP '+ CAST(@PageSize as VARCHAR(4))+' '+ @FieldList+' FROM '+@TableName +' WHERE '+@Primarykey+' <(SELECT MIN('+ @PrimaryKeyAlias +') FROM('+ @SqlDistinct+' TOP '+ CAST(@PageSize*(@PageNumber-2)+@ExtraPageNumber as Varchar(20)) +' '+ @Primarykey +' AS '+@PrimaryKeyAlias+' FROM '+@TableName +' ORDER BY '+ @SortFields +' '+ @SortTypeA+') AS TBMaxID)'+' ORDER BY '+ @SortFields +' '+ @SortTypeA+') AS TempTB'+' ORDER BY '+ @ConvertedSortFields +' '+ @SortTypeB end end end else --有查询条件 begin if @TemporaryPageCount<2 or @PageNumber<=@TemporaryPageCount / 2 + @TemporaryPageCount % 2 --前半部分数据处理 begin if @PageNumber=1 set @SqlTotalCount=@SqlDistinct+' TOP '+ CAST(@PageSize as VARCHAR(4))+' '+ @FieldList+' FROM '+@TableName +' WHERE 1=1 and ' + @QueryCondition + ' ORDER BY '+ @SortFields +' '+ @SortTypeB else if(@EnabledSort=1) begin set @SqlTotalCount=@SqlDistinct+' TOP '+ CAST(@PageSize as VARCHAR(4))+' '+ @FieldList+' FROM '+@TableName +' WHERE '+@Primarykey+' <(SELECT MIN('+ @PrimaryKeyAlias +') FROM ('+ @SqlDistinct+' TOP '+ CAST(@PageSize*(@PageNumber-1) as Varchar(20)) +' '+ @Primarykey +' AS '+@PrimaryKeyAlias+' FROM '+@TableName+' WHERE (1=1) and ' + @QueryCondition +' ORDER BY '+ @SortFields +' '+ @SortTypeB+') AS TBMinID)'+' and '+ @QueryCondition +' ORDER BY '+ @SortFields +' '+ @SortTypeB end else begin set @SqlTotalCount=@SqlDistinct+' TOP '+ CAST(@PageSize as VARCHAR(4))+' '+ @FieldList+' FROM '+@TableName +' WHERE '+@Primarykey+' >(SELECT MAX('+ @PrimaryKeyAlias +') FROM ('+ @SqlDistinct+' TOP '+ CAST(@PageSize*(@PageNumber-1) as Varchar(20)) +' '+ @Primarykey +' AS '+@PrimaryKeyAlias+' FROM '+@TableName +' WHERE (1=1) and ' + @QueryCondition +' ORDER BY '+ @SortFields +' '+ @SortTypeB+') AS TBMinID)'+' and '+ @QueryCondition +' ORDER BY '+ @SortFields +' '+ @SortTypeB end end else begin set @PageNumber = @TemporaryPageCount-@PageNumber+1 --后半部分数据处理 if @PageNumber <= 1 --最后一页数据显示 set @SqlTotalCount=@SqlDistinct+' * FROM ('+@SqlDistinct+' TOP '+ CAST(@ExtraPageNumber as VARCHAR(4))+' '+ @FieldList+' FROM '+@TableName +' WHERE (1=1) and '+ @QueryCondition +' ORDER BY '+ @SortFields +' '+ @SortTypeA+') AS TempTB'+' ORDER BY '+ @ConvertedSortFields +' '+ @SortTypeB else if(@EnabledSort=1) set @SqlTotalCount=@SqlDistinct+' * FROM ('+@SqlDistinct+' TOP '+ CAST(@PageSize as VARCHAR(4))+' '+ @FieldList+' FROM '+@TableName+' WHERE '+@Primarykey+' >(SELECT MAX('+ @PrimaryKeyAlias +') FROM('+ @SqlDistinct+' TOP '+ CAST(@PageSize*(@PageNumber-2)+@ExtraPageNumber as Varchar(20)) +' '+ @Primarykey+' AS '+@PrimaryKeyAlias+' FROM '+@TableName+' WHERE (1=1) and '+ @QueryCondition +' ORDER BY '+ @SortFields +' '+ @SortTypeA+') AS TBMaxID)' +' and '+ @QueryCondition+' ORDER BY '+ @SortFields +' '+ @SortTypeA+') AS TempTB'+' ORDER BY '+ @ConvertedSortFields +' '+ @SortTypeB else set @SqlTotalCount=@SqlDistinct+' * FROM ('+@SqlDistinct+' TOP '+ CAST(@PageSize as VARCHAR(4))+' '+ @FieldList+' FROM '+@TableName+' WHERE '+@Primarykey+' <(SELECT MIN('+ @PrimaryKeyAlias +') FROM('+ @SqlDistinct+' TOP '+ CAST(@PageSize*(@PageNumber-2)+@ExtraPageNumber as Varchar(20)) +' '+ @Primarykey +' AS '+@PrimaryKeyAlias+' FROM '+@TableName+' WHERE (1=1) and '+ @QueryCondition +' ORDER BY '+ @SortFields +' '+ @SortTypeA+') AS TBMaxID)'+' and '+ @QueryCondition+' ORDER BY '+ @SortFields +' '+ @SortTypeA+') AS TempTB'+' ORDER BY '+ @ConvertedSortFields +' '+ @SortTypeB end end ------返回查询结果----- print @SqlTotalCount exec sp_executesql @SqlTotalCount --SELECT datediff(ms,@ExecuteTime,getdate()) as 耗时 SET NOCOUNT OFF--调用DECLARE @return_value int, @PageCount int, @RecordCount intSELECT @PageCount = 0 SELECT @RecordCount = 0EXEC @return_value = [dbo].[usp_CommonDataResourcePaged] @TableName = N'WebErrorLog', @FieldList = N'[ID],[Date],[Thread],[Level],[Logger],[Message],[Exception]', @PageSize = 30, @PageNumber = 50, @SortFields = [ID], @EnabledSort =N'1' , @QueryCondition = N'', @Primarykey = N'[ID]', @EnabledDistinct = 1, @PageCount = @PageCount OUTPUT, @RecordCount = @RecordCount OUTPUTSELECT @PageCount as N'@PageCount', @RecordCount as N'@RecordCount'SELECT 'Return Value' = @return_value

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