fiscal year date sequence generation

问题

I have a table called fiscal year with column start_date,end_date(empty table), I want to insert records for each fiscal year till 2060

FISCAL_YEAR Start dt is Jul 1st, End dt is Jun 31st of next year

what i tried

select  add_months(start_date ,-6),add_months(start_date ,6)-1 from (
select to_date('20000101','yyyymmdd') start_date from dual )
 basis

how do i generate this sequence till 2060

 Decription              start_date        end_date  
 FISCAL YEAR 2000     7/1/1999              6/30/2000

回答1:

SQL> select
  2    to_date('01-07-' || (1999 + rownum), 'dd.mm.yyyy') start_date,
  3    to_date('30-06-' || (2000 + rownum), 'dd.mm.yyyy') finish_date
  4  from dual
  5  connect by level <= 10;

START_DATE  FINISH_DATE
----------- -----------
01.07.2000  30.06.2001
01.07.2001  30.06.2002
01.07.2002  30.06.2003
01.07.2003  30.06.2004
01.07.2004  30.06.2005
01.07.2005  30.06.2006
01.07.2006  30.06.2007
01.07.2007  30.06.2008
01.07.2008  30.06.2009
01.07.2009  30.06.2010

10 rows selected

回答2:

You can do it like this:

SELECT 
   ADD_MONTHS(DATE '1999-07-01', 12*(LEVEL-1)) as fiscal_year_begin,
   ADD_MONTHS(DATE '1999-07-01', 12*LEVEL) - INTERVAL '1' DAY AS fiscal_year_end
FROM dual
CONNECT BY LEVEL < 60;

FISCAL_YEAR_BEGIN   FISCAL_YEAR_END
1999-07-01  2000-06-30
2000-07-01  2001-06-30
2001-07-01  2002-06-30
2002-07-01  2003-06-30
2003-07-01  2004-06-30
2004-07-01  2005-06-30
2005-07-01  2006-06-30
2006-07-01  2007-06-30
2007-07-01  2008-06-30
2008-07-01  2009-06-30
...

来源：https://stackoverflow.com/questions/29893963/fiscal-year-date-sequence-generation

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sql

Oracle

plsql

oracle11g