All Oracle Error Codes
Oracle DBA Forum

Frequent Oracle Errors

TNS:could not resolve the connect identifier specified
Backtrace message unwound by exceptions
invalid identifier
PL/SQL compilation error
internal error
missing expression
table or view does not exist
end-of-file on communication channel
TNS:listener unknown in connect descriptor
insufficient privileges
PL/SQL: numeric or value error string
TNS:protocol adapter error
ORACLE not available
target host or object does not exist
invalid number
unable to allocate string bytes of shared memory
resource busy and acquire with NOWAIT specified
error occurred at recursive SQL level string
ORACLE initialization or shutdown in progress
archiver error. Connect internal only, until freed
snapshot too old
unable to extend temp segment by string in tablespace
Credential retrieval failed
missing or invalid option
invalid username/password; logon denied
unable to create INITIAL extent for segment
out of process memory when trying to allocate string bytes
shared memory realm does not exist
cannot insert NULL
TNS:unable to connect to destination
remote database not found ora-02019
exception encountered: core dump
inconsistent datatypes
no data found
TNS:operation timed out
PL/SQL: could not find program
existing state of packages has been discarded
maximum number of processes exceeded
error signaled in parallel query server
ORACLE instance terminated. Disconnection forced
TNS:packet writer failure
see ORA-12699
missing right parenthesis
name is already used by an existing object
cannot identify/lock data file
invalid file operation
quoted string not properly terminated

9205 Problems / SGA_MAX_SIZE

Koivu, Lisa


Hi all,=20

Am I the only one having major problems with 9205? Is anyone else
seeing the following behavior? I'm on Windows 2003 unfortunately

ORA-12500, ORA-12540, etc. refused connections with 'internal limit
exceeded', 'exec error' in the log files=20
Instance crash with no trace as to why
Listeners crashing

I'm scared out of my pants because this app will be adding hundreds of
users in two weeks. We can't even support what we have now. =20

I'm blaming the patchset because I worked on a 9204 database that
accepted 150+ connections being spawned in the same second without

Maybe part of this behavior is due to my possible misunderstanding of
sga_max_size and pga_aggregate_target. Can someone please tell me if
I've got this right, I need a reality check.

Sga_max_size is the total amount of memory that the buffer cache, large
pool, shared pool, etc. can grow to, allowing dynamic resizing.

Pga_aggregate_target is the guideline for the amount of memory granted
to user connections. This is *above* sga_max_size. =20

So, on Windows, since I am limited to 2gb (and /3gb switch is a
nightmare) my sga_max_size + pga_aggregate_target should be below 2gb,
with some wiggle room since the db will just go on trucking by the
figure set in pga_aggregate_target.=20

Any suggestions, comments, etc. are appreciated. I'm going to open up a
TAR but it's near impossible to dig through all the trace files to get
the error(s) necessary to point out my problem. Guess I better get out
my f'ing shovel...

Thanks all

Lisa Koivu
The poor chump that ends up doing everyone else's work / Database Monkey
Orlando, FL, USA

"The sender believes that this E-Mail and any attachments were free of an=
y virus, worm, Trojan horse, and/or malicious code when sent. This messag=
e and its attachments could have been infected during transmission. By r=
eading the message and opening any attachments, the recipient accepts ful=
l responsibility for taking proactive and remedial action about viruses a=
nd other defects. The sender's business entity is not liable for any loss=
=20or damage arising in any way from this message or its attachments."