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: Metalink and availability

Jared Still


Four 9's translates to 53 minutes of downtime per year.

Contrary to what Oracle marketing will tell you, there really
isn't any such thing as rolling upgrades or patches.

Well, that's not quite true.  One off patches that are applied
with Opatch can be done in a rolling fashion.

The quarterly security patches cannot be applied in a rolling
fashion however.

Does anyone think they can apply even one of the CPU
patch sets in 53 minutes to a RAC system?

Not that I've tried it - we do not have any RAC systems.

Applying the a single CPU to one of our SAP systems
in less than an hour is quite a challenge at times.


On 5/23/06, Michael Fontana <MFontana@verio.net> wrote:
Hey, wait a minute.

I just had 4 oracle senior SE's assure me that if I implemented RAC and
I would have four nines of uptime (or better), and that it was very
easily done.

I guess Oracle doesn't eat it's own dogfood?


Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist