SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE 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 int
SELECT @PageCount = 0 SELECT @RecordCount = 0
EXEC @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 OUTPUT
SELECT @PageCount as N'@PageCount', @RecordCount as N'@RecordCount'
SELECT 'Return Value' = @return_value