달력

오라클로 달력 만들기

본문 : http://www.gurubee.net/article/22424

with t as (

select to_date('201509','yyyymm') ym from dual)

SELECT * FROM (

SELECT MIN (DECODE (TO_CHAR (YM + LEVEL - 1, 'd'), '1', LEVEL)) SUN

  , MIN (DECODE (TO_CHAR (YM + LEVEL - 1, 'd'), '2', LEVEL)) MON

  , MIN (DECODE (TO_CHAR (YM + LEVEL - 1, 'd'), '3', LEVEL)) TUE

  , MIN (DECODE (TO_CHAR (YM + LEVEL - 1, 'd'), '4', LEVEL)) WED

  , MIN (DECODE (TO_CHAR (YM + LEVEL - 1, 'd'), '5', LEVEL)) THU

  , MIN (DECODE (TO_CHAR (YM + LEVEL - 1, 'd'), '6', LEVEL)) FRI

  , MIN (DECODE (TO_CHAR (YM + LEVEL - 1, 'd'), '7', LEVEL)) SAT

   FROM T

CONNECT BY LEVEL <= LAST_DAY (YM) - YM + 1

  GROUP BY TRUNC (YM + LEVEL, 'iw')

  ORDER BY 7)