Hi,
Is there a quicker way to get a selection of random rows than RAND()?
I basically use:

SELECT * FROM table ORDER BY RAND() LIMIT 3;

But I find that as the # of rows increases in table, it keeps taking longer
and longer to get a result back. And I am talking a large increase,
basically 50 rows took about 1 second, 700 rows now takes almost a minute.

I am not sure why the # of rows would affect RAND.

I am using the latest version of Mysql and php4 to get the rows.


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