Well, if the temp had any brains, the job should take less than an hour.
Maybe your temp employee was hoping for a promotion to damagement,
in which case the job would take days.
Jared
"Jamadagni, Rajendra" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
05/22/2002 08:53 AM
Please respond to ORACLE-L
To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
cc:
Subject: RE: Statistical sampling and representative stats collection
I remember, in 96/97, I was working on a Oracle 7 database and none of the
this sample() was available. My task was to select x people out of z
number
of people randomly. We hired a temp, who took Dallas/Fort Worth dictionary
(I was working in that area) and counted (yes counted) number of people
whose last names started with A and B and so on.
We put this information into a table and then found out percentage of last
names starting with A compared to the whole list for each letter. This
percentage was used as weightage for each letter when choosing random
samples from a list of people. Then I used this weightage and dbms_random
to
pick the required number of names from our database. It was fun to
implement, but I feel bad for the temp who had to count the names.
So, compared to that, 8i and 9i built-in features rock !!
Raj
______________________________________________________
Rajendra Jamadagni MIS, ESPN Inc.
Rajendra dot Jamadagni at ESPN dot com
Any opinion expressed here is personal and doesn't reflect that of ESPN
Inc.
QOTD: Any clod can have facts, but having an opinion is an art!
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