From: | Henry Drexler <alonup8tb(at)gmail(dot)com> |
---|---|
To: | yourbuddyrohan(at)gmail(dot)com |
Cc: | pgsql-general <pgsql-general(at)postgresql(dot)org> |
Subject: | limitby without orderby |
Date: | 2011-09-22 12:14:54 |
Message-ID: | CAAtgU9RGhn9phG0jTmRFGq7+yO2rWedy+tbYojtrH+fb4gGC8g@mail.gmail.com |
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Thread: | |
Lists: | pgsql-general |
*From*: Rohan Malhotra <yourbuddyrohan(at)gmail(dot)com>
select * from items order by random() limit 5;
my basic requirement is to get random rows from a table, my where clause
will make sure I won't get same rows in repeated execution of above queries.
--
Regards
To clarify, you are not looking for random then yes? as you want to
run select * from items order by random() limit 5; and not get
repeating values - as if you are using random you will at times get
repeating values.
You are wanting to get a gradually restrictive list(excluding those
results you have received previously)? So each time you run the query
you are guaranteed to get a new list of 5 rows?
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