Take your system down with Cartesian Joins

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How to fill up your disk (system auxiliary storage pool) and take down
your system. Create a query  to output to a file. Join two or more
tables but neglect to join the tables. This will produce a Cartesian
join. http://www.orafaq.com/wiki/Cartesian_join

You will get this message before your system goes down.

Additional Message Information 

Message ID . . . . . . : CPF0907 
Date sent . . . . . . : 08/07/08 Time sent . . . . . . : 07:23:47 

Message . . . . : Serious storage condition may exist. Press HELP. 

Cause . . . . . : The amount of available auxiliary storage in the
system 
auxiliary storage pool has reached the threshold value. This is a 
potentially serious system condition. The auxiliary storage capacity is 
210,990,268,416 bytes. The auxiliary storage used is 191,498,387,456
bytes. The
threshold is 90.000000 percent. The auxiliary storage available is
9.23828
percent. 
Recovery . . . : Use the WRKSYSSTS command to monitor the amount of
storage
used. The use of storage can be reduced by the following actions: Save 
objects by specifying STG(*FREE); delete any unused objects. Save the
old 
log versions of QHST that are not currently used and then delete them; 
either write or delete spooled files on the system. Failure to reduce
the 
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