我需要使用以下内容填充Oracle 11g数据库中的日历表： CALENDAR_DATE， WEEK_NUMBER， week_year， day_since_2000， week_since_2000， month_since_2000， quarter_since_2000， WEEK_OF_MONTH
自2000年以来，该表已经填充了数据我现在需要将其填充到1994年，其中包含Since_2000列的负数。我想我已经有了一切，但自2000年以来的一周和2000年以来的一个季度。
EDIT1：刚刚注意到自2000年以来的200周和一个月我的一周仍然搞砸了。使用下面提到的答案后，自2000年以来的季度看起来很好我正在使用最新版本更新查询。
EDIT2：由于缺少trunc（）而无法正常工作。它的工作正常。最新查询已更新。
这就是我用来做的事情：
/* Formatted on 2/1/2013 11:54:27 AM (QP5 v5.227.12220.39724) */
CREATE OR REPLACE PROCEDURE populate_d_calendar (start_date IN DATE,
end_date IN DATE)
AS
BEGIN
INSERT INTO d_calendar (calendar_date,
week_number,
week_year,
day_since_2000,
week_since_2000,
month_since_2000,
quarter_since_2000,
week_of_month)
SELECT dt, --Date
TO_CHAR (dt,
'ww'), --Week in the year
TO_CHAR (dt,
'yyyy'), --Year
TO_CHAR (dt - end_date), --Day Since 2000
TRUNC (TO_CHAR (dt - end_date) / 7), --Week Since 2000
TRUNC (MONTHS_BETWEEN (dt,
end_date)), --Month Since 2000
CASE
WHEN TO_CHAR (dt,
'MMDD') >= '0101'
AND TO_CHAR (dt,
'MMDD') < '0401'
THEN
0
+ 4
* TRUNC ( MONTHS_BETWEEN (TO_DATE ( '0101'
|| TO_CHAR (dt,
'yyyy'),
'mmddyyyy'),
TO_DATE ('01Jun2000'))
/ 12) --q1
WHEN TO_CHAR (dt,
'MMDD') >= '0401'
AND TO_CHAR (dt,
'MMDD') < '0701'
THEN
1
+ 4
* TRUNC ( MONTHS_BETWEEN (TO_DATE ( '0101'
|| TO_CHAR (dt,
'yyyy'),
'mmddyyyy'),
TO_DATE ('01Jun2000'))
/ 12) --q2
WHEN TO_CHAR (dt,
'MMDD') >= '0701'
AND TO_CHAR (dt,
'MMDD') < '1001'
THEN
2
+ 4
* TRUNC ( MONTHS_BETWEEN (TO_DATE ( '0101'
|| TO_CHAR (dt,
'yyyy'),
'mmddyyyy'),
TO_DATE ('01Jun2000'))
/ 12) --q3
WHEN TO_CHAR (dt,
'MMDD') >= '1001'
AND TO_CHAR (dt,
'MMDD') <= '1231'
THEN
3
+ 4
* TRUNC ( MONTHS_BETWEEN (TO_DATE ( '0101'
|| TO_CHAR (dt,
'yyyy'),
'mmddyyyy'),
TO_DATE ('01Jun2000'))
/ 12) --q4
END
quarters_since_2000, --Quarter Since 2000
TO_CHAR (dt,
'w') --Week of the month
FROM (SELECT start_date + LEVEL - 1 dt
FROM DUAL
CONNECT BY LEVEL <= end_date - start_date + 1);
END;
/
答案 0 :(得分：1)
我认为你可能会像其他人一样经历一个浮动点，所以也许：
TO_CHAR (dt - end_date)/7 week_since_2000
和
(MONTHS_BETWEEN (dt,
end_date)/3) quarter_since_2000
答案 1 :(得分：1)
周，您可以按照以下方法之一进行操作：
http://searchoracle.techtarget.com/answer/Calculating-weeks-between-two-dates
因为它取决于哪些规则对您更有用
宿舍，请使用：
case
WHEN TO_CHAR (dt,'MMDD') >= '0101' and TO_CHAR (dt,'MMDD') < '0401' then 0 + 4 * trunc(months_between( to_date('0101' || to_char(dt,'yyyy'),'mmddyyyy'),to_date('01Jun2000' )) /12) --q1
WHEN TO_CHAR (dt,'MMDD') >= '0401' and TO_CHAR (dt,'MMDD') < '0701' then 1 + 4 * trunc(months_between( to_date('0101' || to_char(dt,'yyyy'),'mmddyyyy'),to_date('01Jun2000' )) /12) --q2
WHEN TO_CHAR (dt,'MMDD') >= '0701' and TO_CHAR (dt,'MMDD') < '1001' then 2 + 4 * trunc(months_between( to_date('0101' || to_char(dt,'yyyy'),'mmddyyyy'),to_date('01Jun2000' )) /12) --q3
WHEN TO_CHAR (dt,'MMDD') >= '1001' and TO_CHAR (dt,'MMDD') <= '1231' then 3 + 4 * trunc(months_between( to_date('0101' || to_char(dt,'yyyy'),'mmddyyyy'),to_date('01Jun2000' )) /12) --q4
end quarters_since_2000,
答案 2 :(得分：1)
这是从2013年1月1日至今的我的日历表版本。我不知道你怎么需要插入月，季，日等数量...你需要显示每年或一次之间的总月数？您可以自己添加这些计算或在帖子中添加所需的输出以使其清晰。请参阅下面的addl查询/评论：
-- Days,weeks, quarters from 1/1/2013 --
SELECT start_date -- 1/1/2013 --
, TRUNC(start_date, 'iw') wk_starts
, TRUNC(start_date, 'iw') + 7 - 1/86400 wk_ends
, TO_NUMBER (TO_CHAR (start_date, 'IW')) ISO_wk#
, TO_NUMBER (TO_CHAR (start_date, 'Q')) Quarters
FROM
(
SELECT TRUNC(SYSDATE, 'Y')-1 + LEVEL AS start_date
FROM dual
CONNECT BY LEVEL <=
( -- replace this part to go back to 1994 - see below --
SELECT TRUNC(ADD_MONTHS (SYSDATE, 12), 'Y')-TRUNC(SYSDATE, 'Y') "Num of Days in 2013"
FROM dual
)
)
/
START_DATE WK_STARTS WK_ENDS ISO_WK# QUARTERS
---------------------------------------------------------------------
1/1/2013 12/31/2012 1/6/2013 11:59:59 PM 1 1
1/2/2013 12/31/2012 1/6/2013 11:59:59 PM 1 1
......
2/19/2013 2/18/2013 2/24/2013 11:59:59 PM 8 1
2/20/2013 2/18/2013 2/24/2013 11:59:59 PM 8 1
......
3/10/2013 3/4/2013 3/10/2013 11:59:59 PM 10 1
3/11/2013 3/11/2013 3/17/2013 11:59:59 PM 11 1
.......
-- 6971 days from 1/1/1994 till today - 2/1/2013 --
SELECT TRUNC(SYSDATE) - TRUNC(ADD_MONTHS (SYSDATE, -12*19), 'Y') "Num of Days from 1994"
FROM dual
/
-- 4780 days from 1/1/2000 till today - 2/1/2013 --
SELECT TRUNC(SYSDATE) - TRUNC(ADD_MONTHS (SYSDATE, -12*13), 'Y') "Num of Days from 2000"
FROM dual
/
-- 156 Months between from 2000 toll today --
SELECT MONTHS_BETWEEN(TRUNC(SYSDATE), TRUNC(ADD_MONTHS (SYSDATE, -12*13))) mo_btw_2000_till_today
FROM dual
/
-- Number of weeks btw. 2 dates --
SELECT to_char(sysdate, 'WW') - to_char(sysdate-30, 'WW') number_of_weeks FROM dual
/
这可能不是您想要的...为了帮助您，我需要查看查询的实际预期输出。只是想帮忙......