RE: Job to run first Wednesday

From: Orr, Steve <sorr_at_rightnow.com>
Date: Tue, 22 Jul 2003 16:38:58 -0600
Message-Id: <25988.338990@fatcity.com>

No matter how you slice it it's too much stuff for such a simple concept. Here's another slice with TOO much stuff:

select case when next_day(round(sysdate,'MM'),'WEDNESDAY') < sysdate

              or round(trunc(sysdate,'MM'),'W') 
                 = NEXT_DAY(TRUNC(sysdate,'MM')-1,'WEDNESDAY')
            then next_day(round(sysdate+16,'MM'),'WEDNESDAY') 
            else next_day(round(sysdate,'MM'),'WEDNESDAY')
       end

from dual;

Steve Orr

-----Original Message-----
From: Igor Neyman [mailto:ineyman_at_perceptron.com] Sent: Tuesday, July 22, 2003 3:59 PM
To: Multiple recipients of list ORACLE-L Subject: RE: Job to run first Wednesday

This should fix the flaw:

select CASE WHEN to_char(to_date('09/04/2003','MM/DD/YYYY'), 'DD') <= 6

THEN CASE WHEN to_char(to_date('09/04/2003','MM/DD/YYYY'), 'DY') = 'WED'

                      THEN to_date('09/04/2003', 'MM/DD/YYYY')
                      ELSE CASE WHEN
to_char(next_day(to_date('09/04/2003', 'MM/DD/YYYY'), 'WED'), 'DD') > 6
                                THEN
next_day(last_day(to_date('09/04/2003','MM/DD/YYYY')),'WED')
                                ELSE next_day(to_date('09/04/2003',
'MM/DD/YYYY'), 'WED')
                           END
                 END
            ELSE
next_day(last_day(to_date('09/04/2003','MM/DD/YYYY')),'WED')
       END

from dual;

Igor Neyman, OCP DBA
ineyman_at_perceptron.com

-----Original Message-----
Daniel Fink
Sent: Tuesday, July 22, 2003 4:04 PM
To: Multiple recipients of list ORACLE-L

Jared,

If you will closely examine the specs, the assumption is not documented. Therefore, the application code must take into account that the 1st Wednesday of the month may still be in the future.

select CASE WHEN to_char(to_date('08/07/2003','MM/DD/YYYY'), 'DD') <= 6

THEN CASE WHEN to_char(to_date('08/07/2003','MM/DD/YYYY'), 'DY') = 'WED'

                      THEN to_date('08/07/2003', 'MM/DD/YYYY')
                      ELSE next_day(to_date('08/07/2003', 'MM/DD/YYYY'),
'WED')
                 END
            ELSE
next_day(last_day(to_date('08/07/2003','MM/DD/YYYY')),'WED')
       END

from dual;

Of course, there is a flaw in this logic. Can anyone spot it? It's particularly nasty...

Daniel

Jared.Still_at_radisys.com wrote:
>
> Rachel,
>
> The assumption is that the current day is already >= the first
wednesday
> of the month,
> making it useful for the dbms_job interval.
>
> Did you read the specs? :)
>
> Jared
>
> Rachel Carmichael <wisernet100_at_yahoo.com>
> Sent by: ml-errors_at_fatcity.com
> 07/22/2003 01:14 PM
> Please respond to ORACLE-L
>
>
> To: Multiple recipients of list ORACLE-L
<ORACLE-L_at_fatcity.com>
> cc:
> Subject: RE: Job to run first Wednesday
>
> don't rush off to use it..... I tried it, substituting August 1 and
got
> September.
>
> 1* select
> next_day(last_day(to_date('08/01/2003','MM/DD/YYYY')),'WED') from dual
> SQL> /
>
> NEXT_DAY(
> ---------
> 03-SEP-03
>
> --- Jared.Still_at_radisys.com wrote:
> > Hmm... much more elegant than mine, and everyone elses.
> >
> > Guess I better RTFM the next_day function.
> >
> >
> >
> >
> >
> >
> > "Mercadante, Thomas F" <NDATFM_at_labor.state.ny.us>
> > Sent by: ml-errors_at_fatcity.com
> > 07/22/2003 12:34 PM
> > Please respond to ORACLE-L
> >
> >
> > To: Multiple recipients of list ORACLE-L
> > <ORACLE-L_at_fatcity.com>
> > cc:
> > Subject: RE: Job to run first Wednesday
> >
> >
> > Josh,
> >
> > With the following functions, you could probably get it to work:
> >
> > select next_day(last_Day(sysdate),'WED') from dual
> >
> > This (today) returns Wed, August 6th.
> >
> > Tom Mercadante
> > Oracle Certified Professional
> >
> >
> > -----Original Message-----
> > Sent: Tuesday, July 22, 2003 3:14 PM
> > To: Multiple recipients of list ORACLE-L
> >
> >
> > Greetings,
> >
> > How can I set the interval in my dbms job to have it run on the
first
> > Wednesday of every month? Is this even possible? I have been trying
> > to noodle it thru for a week to no avail.
> >
> > tia,
> >
> > Josh
> > --
> > Please see the official ORACLE-L FAQ: http://www.orafaq.net
> > --
> > Author: Josh Collier
> > INET: Josh.Collier_at_Banfield.net
> >
> > Fat City Network Services -- 858-538-5051 http://www.fatcity.com
> > San Diego, California -- Mailing list and web hosting
services
> >

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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Igor Neyman
  INET: ineyman_at_perceptron.com

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Received on Tue Jul 22 2003 - 17:38:58 CDT