2014-01-27

ORA-00935


select owner,sum(bytes) sumb 
  from dba_segments 
 group by OWNER
 order by sum(bytes) desc
;

ORA-00935: group function is nested too deeply

Oracle Support Document 18529.1


Error:  ORA 935  
Text:   group function is nested too deeply 
-------------------------------------------------------------------------------
Cause:  This is an internal error message not usually issued.
Action: Contact customer support.


The fix for my query is not to use the aggregate in order by:

select owner,sum(bytes) sumb
  from dba_segments 
 group by owner
 order by sumb 
;

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I am Timo Raitalaakso. I have been working since 2001 at Solita Oy as a Senior Database Specialist. I have received Oracle ACE nomination. My main focus is on projects involving Oracle database. In this Rafu on db blog I write some interesting issues that evolves from my interaction with databases. Mainly Oracle.