You can use the Rank () function to rank your rows
based on a simple or complex criteria in a subquery or
an inline view and then extract the requisite set by
using a simple condition on the Rank col. Below is a
simple example just to give you some idea of what is
possible. You may want to take a look at some ref
manual to explore this for meeting your particular
requirement (Best place is Datawarehousing Guide):
SELECT keycol,
some_other_col(s)
FROM (SELECT keycol,
some_other_col(s),
RANK() OVER (ORDER BY keycol) AS
Ranking
FROM mytable
WHERE condition(s)
)
WHERE ranking between 11 and 20; == alter this
cond. to get a different set. You can use more complex
criteria in ranking/ordering your rows.
--- Jan Pruner [EMAIL PROTECTED] wrote:
Does anybody know how to do it better way?
But this will return only the first ten rows not
subsequent sets. How do I
display rows from 11 to 20, 21 to 30 and so on?
ROWNUM is counting output tuples. You cannot use
ROWNUM 10.
I think you have to order select by your primary
key, make filter based on
your primary key and take only first 10 tuples
using ROWNUM.
JP
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
Behalf Of Jan Pruner
Sent: Wednesday, August 29, 2001 4:01 PM
To: Multiple recipients of list ORACLE-L
Subject: Re: How to select and display 10 records
at a time from a table
using sql query
select * from ( select column1, column2 from
my_table order by 1) where
ROWNUM 11;
Look at manual how to use ROWNUM.
It's ease to make mistakes with it.
JP
Dne st 29. srpen 2001 10:55 jste napsal(a):
Dear DBA Gurus,
How do I select and display 10 records at a
time from a table using sql
query only?
Thanks and Regards,
Ranganath
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