Oracle-L: RE: Simple Query for Week number

From: Fink, Dan <Dan.Fink_at_mdx.com>
Date: Thu, 19 Dec 2002 09:05:12 -0800
Message-ID: <F001.0051E7D9.20021219090512@fatcity.com>

Raj,

How do you define week number? If a month starts in the middle of the week, is that week #1 or must it be the first full week?

If the format mask 'W' is adequate, use

1 select sysdate, to_char(sysdate, 'W'),

  2         '01-DEC-02', to_char(to_date('01-DEC-02'), 'W'),
  3         '30-NOV-02', to_char(to_date('30-NOV-02'), 'W')

4* from dual
SQL> / SYSDATE T '01-DEC-0 T '30-NOV-0 T
--------- - --------- - --------- -
19-DEC-02 3 01-DEC-02 1 30-NOV-02 5 -----Original Message-----
Sent: Thursday, December 19, 2002 8:54 AM To: Multiple recipients of list ORACLE-L

Hey Folks,

Looking for the simplest of queries to find the week number, given a date. For example, 19th December 2002 falls in the 3rd week, whereas 19th November, 2002, falls in the 4th week.

Thanks
Raj

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Author:
INET: Rajesh.Rao_at_jpmchase.com

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Author: Fink, Dan
INET: Dan.Fink_at_mdx.com

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