Dear all,
Is there any DB2 SQL statement that could generate rows of intermediate
dates by providing the start and end dates??
If 2006-1-1 and 2006-1-31 are provided to the SQL, the output will look
like :
2006-1-1
2006-1-2
2006-1-3
...
...
...
2006-1-31
Thanks in advance!
Henry 5 1972
------------------------- Commands Entered -------------------------
SELECT start_date + (n2*10+n1) DAYS AS Inter_dates
FROM (VALUES (DATE('2006-1-1'), DATE('2006-1-31'))) Q (Start_date,
End_date)
, (VALUES 0,1,2,3,4,5,6,7 ,8,9) P1(n1)
, (VALUES 0,1,2,3,4,5,6,7 ,8,9) P2(n2)
WHERE (n2*10+n1) <= DAYS(End_date) - DAYS(Start_date )
ORDER BY
Inter_dates
;
--------------------------------------------------------------------
INTER_DATES
-----------
2006-01-01
2006-01-02
2006-01-03
2006-01-04
2006-01-05
2006-01-06
2006-01-07
2006-01-08
2006-01-09
2006-01-10
2006-01-11
2006-01-12
2006-01-13
2006-01-14
2006-01-15
2006-01-16
2006-01-17
2006-01-18
2006-01-19
2006-01-20
2006-01-21
2006-01-22
2006-01-23
2006-01-24
2006-01-25
2006-01-26
2006-01-27
2006-01-28
2006-01-29
2006-01-30
2006-01-31
31 record(s) selected.
Or, you can use recursive query.
Henry wrote: Dear all,
Is there any DB2 SQL statement that could generate rows of intermediate dates by providing the start and end dates??
If 2006-1-1 and 2006-1-31 are provided to the SQL, the output will look like :
2006-1-1 2006-1-2 2006-1-3 .. .. .. 2006-1-31
CREATE FUNCTION dates(start DATE, end DATE)
RETURNS TABLE(dt DATE)
RETURN WITH rec(dt) AS (VALUES (start)
UNION ALL
SELECT dt + 1 DAY FROM rec
WHERE dt < end)
SELECT dt FROM rec;
SELECT dt, item, sales
FROM TABLE(dates(DAT E('2003-01-01'),
DATE('2003-12-31'))) AS dates
LEFT OUTER JOIN sales ON dates.dt = sales.dt;
Cheers
Serge
--
Serge Rielau
DB2 Solutions Development
DB2 UDB for Linux, Unix, Windows
IBM Toronto Lab
Thanks you very much for yours' brilliant solutions!!
Henry
- 26 Jan 2006
A small change that eliminates the warning message...
But only good for a 10,000 years of dates.... Darn
CREATE FUNCTION DATES(START DATE, END DATE)
RETURNS TABLE(DT DATE)
RETURN
WITH REC(DT, LEVEL) AS
(
VALUES (START, 1)
UNION ALL
SELECT DT + 1 DAY, LEVEL + 1
FROM REC
WHERE DT + 1 DAY <= END
AND LEVEL < 3650000
)
SELECT DT FROM REC;
just my two cents... Enjoy This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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