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


Sriram Kumar


Hello Folks,

  We were faced with a show stopper Ora-600 kcrfr_resize2 while
opening the database and best we could do was a partial recovery of
the database.

Luckily for me, I had tried this in a test environment and I can live
with the dataloss.

I thought I would share this experiance with you so that it would be
beneficial to someone

We are running on on Solaris 9. We were in the process of
tuning a heavy batch run for a an application. being a test
environment, we were on noarchivelog mode.

We had set LOG_PARALLELISM to true and bounced the database and were
pursuing the tuning operation and then for a maintenance we had to
bounce this database and when we started the databse, the database
failed with Ora-600 kcrfr_resize2.

I had raised a TAR with oracle and Oracle response was this is a bug
that is fixed in 10.2 and hence they were asking me whether should
they backport this to 9.2.06/ but would lake its own sweet

Instead of waiting for the backport, I had asked them if there any
workaround possible to open the database so that I can continue with
my work. Thier reply was
set _allow_resetlogs_corruption=true, recover the database and then do
a open resetlogs. I had followed the same but again faced with the
same error. after some desparate trail and error, was able to open the
database but with a minimal dataloss.

Lesson I learnt from this exercise is that always use log_parallelism
with caution and would also suggest folks not to try this directly in
a critcal environment.

Best Regards

Sriram Kumar