日期:2014-05-16 浏览次数:20592 次
----------------------------------------------------------------
-- Author :DBA_HuangZJ(发粪涂墙)
-- Date :2014-04-21 15:17:34
-- Version:
-- Microsoft SQL Server 2008 R2 (RTM) - 10.50.1600.1 (X64)
-- Apr 2 2010 15:48:46
-- Copyright (c) Microsoft Corporation
-- Enterprise Edition (64-bit) on Windows NT 6.2 <X64> (Build 9200: ) (Hypervisor)
--
----------------------------------------------------------------
--> 测试数据[huang]
if object_id('[huang]') is not null drop table [huang]
go
create table [huang]([pp_year] int,[pp_month] int)
insert [huang]
select 2014,3 union all
select 2014,3 union all
select 2014,6 union all
select 2014,9 union all
select 2014,3 union all
select 2014,4 union all
select 2014,2 union all
select 2013,1
--------------生成数据--------------------------
declare @s nvarchar(4000)
set @s=''
Select @s=@s+','+quotename('pp_month')+'=max(case when [pp_year]='+quotename([pp_year],'''')+' and pp_month='+quotename(pp_month,'''')+' then [pp_month] else null end)'
from (SELECT DISTINCT * FROM [huang])huang group by pp_month,[pp_year]
exec('select [pp_year]'+@s+' from (SELECT DISTINCT * FROM [huang])huang group by [pp_year]')
----------------结果----------------------------
/*
pp_year pp_month pp_month pp_month pp_month pp_month pp_month
----------- ----------- ----------- ----------- ----------- ----------- -----------
2013 1 NULL NULL NULL NULL NULL
2014 NULL 2 3 4 6 9
*/