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

Re: CPU April 2005 patching madness

Jared Still


The resolution to this problem was to unset ORACLE_HOME
in the system variables and bounce the server.
I know that ORACLE_HOME is not required or recommended on Windows
servers, but I have never encountered a problem with it before, even on
multi-homed Oracle boxes.

Thanks everyone for your suggestions. A couple of you thought it might
be the ORACLE_HOME system variable; nice call.


On 5/23/05, Jared Still <jkstill@(protected):
> Boy, do I love patching.
> Especially Oracle.
> Especially Oracle on Windows.
> You could refer to it as the Full Employment for DBA's Under Pressure act.
> Having made the determination to patch the <>databases on a
> new server that is supposed to go live at the end of this week ( OK, it
> was determined for me. I didn't really want to) I began the patching
> task Friday Evening, having first practiced it on a test server.
> There are three Oracle Homes on this Win23k Server, and three
> Oracle databases.
> Let's call them dev, qa and prd for simplicity.
> Applying the patch on dev and qa went fairly smoothly.
> ...

Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist