RE: help with a monthly rollup
- From: "Stephens, Chris" <chris_stephens@xxxxxxxxxxxx>
- To: <ricks12345@xxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 13 May 2008 13:02:12 -0500
http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/functions
072.htm#i83733
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Rick Ricky
Sent: Tuesday, May 13, 2008 12:45 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: help with a monthly rollup
I need to rollup data by month.
There are a couple ways to do this.
I have a date field. So I can rollup with a to_char(mydate,'YYYYMM')
this requires a where clause as followings
where to_char(mydate,'YYYYMM') = pSomeMonth;
This means I need a function based index to support this. We have alot
of data, so where possible, I want to avoid adding more indexes. Is
there a way to calculate what the last
day of the month is?
so I can use a between as follows
where myDate between to_date(01-MON-YYYY') and
to_date(LASTDAYOFMONTH-MON-YYYY')
Since the last day of the month can be
28,29,30,31
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