我有以下数据:
create table test(c1 number,
c2 number,
c3 number,
c4 number,
c5 number);
insert into test (c1,c2,c3,c4,c5) values(2000,1844054,50.03,922030,25.01);
insert into test (c1,c2,c3,c4,c5) values(2001,1850861,49.86,937391,25.25);
insert into test (c1,c2,c3,c4,c5) values(2002,1841519,50.32,907995,24.81);
insert into test (c1,c2,c3,c4,c5) values(2003,1804163,49.84,902838,24.94);
我需要翻译以下数据:
c1 | c2 | c3 | c4 | c5
2000 | 1844054 | 50.03 | 922030 | 25.01
2001 | 1850861 | 49.86 | 937391 | 25.25
2002 | 1841519 | 50.32 | 907995 | 24.81
2003 | 1804163 | 49.84 | 902838 | 24.94
至:
c1 | 2000 | 2001 | 2002 | 2003
c2 | 1844054 | 1850861 | 1841519 | 1804163
c3 | 50.03 | 49.86 | 50.32 | 49.84
c4 | 922030 | 937391 | 907995 | 902838
c5 | 25.01 | 25.25 | 24.81 | 24.94
我没有使用常规的PIVOT取得成功,所以请您帮忙,谢谢。
这很痛苦。您可以取消透视和重新聚合。这是一种方法:
select which,
max(case when year = 2000 then c end) as val_2000,
max(case when year = 2001 then c end) as val_2001,
max(case when year = 2002 then c end) as val_2002,
max(case when year = 2003 then c end) as val_2003
from ((select c1 as year, 'c2' as which, c2 as c from test) union all
(select c1 as year, 'c3' as which, c3 as c from test) union all
(select c1 as year, 'c4' as which, c4 as c from test) union all
(select c1 as year, 'c5' as which, c5 as c from test)
) x
group by which
order by which;
Here是db <>小提琴。
您正在改变,而不仅仅是枢纽。您需要先取消注册,然后再进行PIVOT。
select * from test
unpivot(c for col in(c2,c3,c4,c5))
pivot(max(c) for c1 in(2000,2001,2002,2003))
order by col;
CO 2000 2001 2002 2003
-- ---------- ---------- ---------- ----------
C2 1844054 1850861 1841519 1804163
C3 50.03 49.86 50.32 49.84
C4 922030 937391 907995 902838
C5 25.01 25.25 24.81 24.94