Re: jdbc cursor positioning

From: Toby <toby(at)paperjet(dot)com>
To: <pgsql-jdbc(at)postgresql(dot)org>
Subject: Re: jdbc cursor positioning
Date: 2002-10-06 19:27:13
Message-ID: 5.1.0.14.0.20021006202100.00a73c58@mail.flirble.org
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as i understand it, postgres doesn't yet support cursors. however, with the
LIMIT and OFFSET modifiers in a SELECt you can get the same behaviour.

SELECT <fields> FROM <table> ORDER BY <field> LIMIT <recsPerPage>
OFFSET <offset>

<fields> is the fields to select
<table> is the table you're selecting from
<recsPerPage> is an integer 1..n for the number of records per page.
<offset> is calculated as ((page - 1) * recsPerPage) where the page number
is 1..n

make sure you order your select by something, else the records in a page
may not quite make sense.

toby

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