从行移调成

Question

列我有一个这样的表：

Name State  Amount 
------------------------------ 
Pump 1 Present  339 
Pump 1 Optimized 88 

我想将它转来是这样的：

Pump 1 Present  339 Optimized 88 

我怎样才能做到这一点与MS SQL 2000？我试图寻找解决方案，但找不到最合适的解决方案。

Answer 1

declare @t table(Name varchar(10), State  varchar(10), Amount int) 
insert into @t 
select 'Pump 1', 'Present',  339 union all 
select 'Pump 1', 'Optimized', 88 

select name, 
max(case when state='Present' then 'Present' end), 
max(case when state='Present' then Amount end), 
max(case when state='Optimized' then 'Optimized' end), 
max(case when state='Optimized' then Amount end) 
from @t 
group by name