Re: trending growth, next increment
- From: Job Miller <jobmiller@xxxxxxxxx>
- To: sacrophyte@xxxxxxxxx, orcl@xxxxxxxxxxx
- Date: Wed, 29 Nov 2006 07:19:34 -0800 (PST)
i don't think the question was asking about object growth, but trending in
general.
From the 10.2 docs, you can interpolate/extrapolate via linear regression using
SQL and some middle-school math.
http://download-west.oracle.com/docs/cd/B19306_01/server.102/b14200/functions132.htm
there are tons of statistical SQL functions in the db for this type of analysis.
----- Original Message ----
From: Charles Schultz <sacrophyte@xxxxxxxxx>
To: orcl@xxxxxxxxxxx
Cc: oracle-l <oracle-l@xxxxxxxxxxxxx>
Sent: Wednesday, November 29, 2006 9:23:59 AM
Subject: Re: trending growth, next increment
10g introduced an object growth trend package. Unfortunately, it was horribly
broken and I have not checked recently to see if they cleaned it up, yet. In
the meantime, I have been using linear regression which works pretty good. We
keep a repository of all tablespaces and build nightly reports. You always have
to watch out for the exceptions, though. =)
As our approach is rather hacked, I would be interested to hear what others are
using.
On 11/29/06, Bob <orcl@xxxxxxxxxxx > wrote:
Is there a way to find the trending growth (next increment) difference
between a defined list of values ie
1 , 2, 3, 4, 5 -- the next increment would be 1
5,4,3,2,1 -- the next increment would be -1
2,4,6,8,10 -- the next increment would be 2
20,15,25,10,30 -- the next increment would be 10
I dont want to subtract base values, so if the base value were lower
than the previous value, the lower value would re establish the counter.
I would use to get trending growth of tablespaces, in this example over
a 5 month period
Thanks
Bob
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Charles Schultz
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