一个简单的交叉报表

Posted 2021-03-01 好记性不如烂笔头

--行转列小实例
--创建测试表
if object_id(N‘test‘, N‘U‘) is not null
  drop table test
go
with PivotTable as
(
  select ‘xxx‘ as czy, ‘点赞‘ as czlx, 2 as num
  union all
  select ‘xxx‘, ‘浏览‘ as czlx, 14 as num
  union all
  select ‘yyy‘, ‘浏览‘ as czlx, 10 as num
  union all
  select ‘zzz‘, ‘浏览‘, 30
  union all
  select ‘zzz‘, ‘点赞‘, 3 
)
select * into test from PivotTable
go
--创建存储过程
if exists(select name from sysobjects where name = ‘usp_GetPivotInfo‘)
    drop proc usp_GetPivotInfo
go

create proc usp_GetPivotInfo
as
declare @czlx varchar(500),
        @SQL varchar(2000)        
select @czlx = stuff((select distinct ‘,[‘ + czlx + ‘]‘  from test for xml path (‘‘)),1,1,‘‘)
--select @czlx
set @SQL = ‘select czy, {#} from test pivot(sum(num) for czlx in ({#})) as T‘;
set @SQL = replace(@SQL, ‘{#}‘, @czlx);
exec(@SQL);
go

exec usp_GetPivotInfo ;