On Wed, 18 Apr 2001, Alec Smith wrote:
> I've got a table of X rows, each with a unique ID as determined by
> auto_increment when the row is inserted into the database. How would I go
> about doing a SELECT on a row of the database and have MySQL return a row
> at random?
Maybe you can do something with the MySQL RAND() function, which returns a
random number between 0.0 and 1.0 (so you'd have to normalize it to
between 1 and MAX(ID)).
You may not be able to use the grouping function that way, though. MySQL
doesn't seem to let you use grouping functions in the WHERE clause.
mysql> select num from ffml where num=floor(rand()*max(num))+1;
ERROR 1111: Invalid use of group function
Anyone else have an idea?
-Philip Mak ([EMAIL PROTECTED])
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