需要显示虚拟月份-Oracle SQL
出于月费报告的目的,需要显示如下所述的输出。只有在支付了当月费用的情况下,才会将数据输入表中,否则该月将不会出现在表中 关于执行查询需要显示虚拟月份-Oracle SQL,sql,oracle,Sql,Oracle,出于月费报告的目的,需要显示如下所述的输出。只有在支付了当月费用的情况下,才会将数据输入表中,否则该月将不会出现在表中 关于执行查询 select reg_id, dop,to_char(dop, 'FMMonth,YYYY') Month, status from fees_status where dop between ('1-Jul-2012') and ('1-Dec-2012') 输出是 REG_ID DOP MONTH STATUS
select reg_id, dop,to_char(dop, 'FMMonth,YYYY') Month, status
from fees_status
where dop between ('1-Jul-2012') and ('1-Dec-2012')
输出是
REG_ID DOP MONTH STATUS
AE-8 7/1/2012 July,2012 PAID
AE-8 9/1/2012 September,2012 PAID
AE-8 11/1/2012 November,2012 PAID
AE-8 12/1/2012 December,2012 PAID
出于报告目的,需要输出为
REG_ID DOP MONTH STATUS
AE-8 7/1/2012 July,2012 PAID
AE-8 8/1/2012 August,2012 NOTPAID
AE-8 9/1/2012 September,2012 PAID
AE-8 10/1/2012 October,2012 NOTPAID
AE-8 11/1/2012 November,2012 PAID
AE-8 12/1/2012 December,2012 PAID
有人可以帮助显示上面提到的输出吗?您可以使用extension of outer join来实现这一点。以下是一个例子:
-- sample of data from your question
SQL> with fees_status(REG_ID, DOP, MONTH1, STATUS) as(
2 select 'AE-8', to_date('7/1/2012', 'MM/DD/YYYY'), 'July,2012' ,'PAID' from dual union all
3 select 'AE-8', to_date('9/1/2012', 'MM/DD/YYYY'), 'September,2012','PAID' from dual union all
4 select 'AE-8', to_date('11/1/2012', 'MM/DD/YYYY'),'November,2012' ,'PAID' from dual union all
5 select 'AE-8', to_date('12/1/2012', 'MM/DD/YYYY'),'December,2012' ,'PAID' from dual
6 ), -- dates
7 dates(dt) as(
8 select add_months(to_date('01/01/2012', 'mm/dd/yyyy'), level - 1)
9 from dual
10 connect by level <= 12
11 )
12 select t.reg_id
13 , d.dt as dop
14 , to_char(d.dt, 'fmMonth, YYYY') as month1
15 , Nvl(t.status, 'NOTPAID') as status
16 from fees_status t
17 partition by (t.reg_id)
18 right outer join dates d
19 on (d.dt = t.dop)
20 where d.dt between (to_date('1-Jul-2012', 'dd-Month-yyyy'))
21 and (to_date('1-Dec-2012', 'dd-Month-yyyy'))
22 ;
REG_ID DOP MONTH1 STATUS
------ ----------- -------------------- -------
AE-8 01-Jul-12 July, 2012 PAID
AE-8 01-Aug-12 August, 2012 NOTPAID
AE-8 01-Sep-12 September, 2012 PAID
AE-8 01-Oct-12 October, 2012 NOTPAID
AE-8 01-Nov-12 November, 2012 PAID
AE-8 01-Dec-12 December, 2012 PAID
6 rows selected
这将创建一个包含一年中所有月份的虚拟表。左转
这是你的要求
希望这有帮助 @一匹没有名字的马。非常有用的功能:+1好主意,但也许可以修改答案,以解决2012年7月1日至2012年12月1日之间的OP where子句要求,并直接参考他的表?from子句中的分区确实很酷。谢谢你的链接
WITH MONTH_COUNTER AS (
SELECT LEVEL-1 AS ID
FROM DUAL
CONNECT BY LEVEL <= 12
)
SELECT TO_CHAR(ADD_MONTHS(TO_DATE('01/01/2012', 'DD/MM/RRRR'), ID),'dd/mm/yyyy') FROM MONTH_COUNTER;