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Re: how to make this database / query faster

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On Sat, Mar 15, 2008 at 4:37 PM, Richard Broersma <richard.broersma@xxxxxxxxx> wrote:
On Sat, Mar 15, 2008 at 4:21 PM, mark <markkicks@xxxxxxxxx> wrote:
 
select * from users where session_key is not Null order by id offset OFFSET limit 300

One solution is to retain the last ID from the previous scan:
 
SELECT *
  FROM Users
 WHERE session_key IS NOT NULL
    AND id > your_last_id
  LIMIT 300;

will this ensure that no row is repeated when i itereate over the table? what are the rows ordered by?
thanks

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