Re: Debug ORA-03113 on Oracle XE

From: Maxim Demenko <>
Date: Tue, 16 Jun 2009 15:00:40 +0200
Message-ID: <>

Álvaro G. Vicario schrieb:
> Maxim Demenko escribió:
>> Álvaro G. Vicario schrieb:
>>> I have a web application written in PHP that's failing on one 
>>> computer (and only that computer): a laptop that runs the Oracle 10g 
>>> Express Edition. It fails when it executes a specific SELECT query: I 
>>> get a "ORA-03113 end-of-file on communication channel" error and the 
>>> connection drops.
>>> My main concern is that I can't figure out what to do next. It seems 
>>> that ORA-03113 is a very generic error that can happen for lots of 
>>> reasons.
>>> The query returns no rows with the current data set but it's pretty 
>>> complex (lots of joins and subqueries). However, I only get the 
>>> ORA-03113 error when I run it through PHP and Apache. When I run it 
>>> from SQL Developer I get no error and the results come almost 
>>> instantly. The PHP backtrace doesn't provide additional info. The PHP 
>>> and Apache versions do not seem to matter. There're neither antivirus 
>>> nor firewall in the laptop. If Oracle XE generates further info I 
>>> don't know where I can find it.

>> The first place where i would look up - alert.log, 3113 should be 
>> recorded there as well as the preceding error ( which is very often an 
>> ORA-00600 or ORA-07445, an additional trace file should be generated 
>> as well ),

> I found "alert_xe.log". It doesn't mention 3113 but there're several
> lines like:
> Errors in file c:\oraclexe\app\oracle\admin\xe\udump\xe_ora_3928.trc:
> ORA-07445: se ha encontrado una excepción: volcado de memoria
> [ACCESS_VIOLATION] [_lxptmutf8+30] [PC:0x60AD606E] [ADDR:0xA98FD33]
> ... and there's a 6 MB dump at "xe_ora_3928.trc". At least now I have
> something to look at, thank you.
>> when you figured out, from which error is the origin of 3113, next 
>> step should be Metalink.

> I presume Metalink is only for pay customers, isn't it?

Sorry, have overlooked you are on XE.
In that case you can not get any support from Oracle ( you'll have to upgrade your Oracle version - in that case your error may be not reproducible at all). You can though try to ask on the OTN Oracle XE forum, maybe somebody already experienced similar error and has a workaround.

Best regards


Why make things difficult, when it is possible to make them cryptic
and totally illogical, with just a little bit more effort?

Aksel Peter Jørgensen
Received on Tue Jun 16 2009 - 08:00:40 CDT

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