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: URGENT - Can you coalesce a RBS tablespace?

Niall Litchfield


On 9/6/05, Henslee, Jeff <jhenslee@wausauwindow.com> wrote:
Apologies - Here's are the error messages I was receiving -

ORA-01562 Failed to extend rollback segment number 11
ORA-01650 unable to extend rollback segment RBS10 by 128 in tablespace RBS.

It started with one user at first and then started to spread to a number of users on the same instance.

The weird thing about it was the initial extent of segment 10 was 128.  The next size was 1M with the optimal size being 5M.

I think its already been suggested that you keep initial=next for rollback segments. This is good advice, especially for RBS - though actually for other segment types as well.

It appeared that it was even having troubles with the initial extent.  I guess that is why I labeled it 'urgent'.  I wasn't sure why it couldn't even create the initial extent.  The free space still does not appear to be giving itself back to the instance....

the 128 in the 1650 error text is blocks not bytes. Most likely you have an 8k block size and its a 1m extent that can't be created.

Niall Litchfield
Oracle DBA