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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

A question about RBS

Guang Mei



Oralce 8173 on Sun box. RBSLMT size is 2G.

First I got this when a delete statement was run. There was no any other
transactions running during the whole thing.

ORA-1650: unable to extend rollback segment RBS007 by 16 in
tablespace RBSLMT

Then I found:

select segment_name, bytes from dba_segments where segment_name like 'RBS%';

SEGMENT_NAME                 BYTES
-------------------------------- ----------
RBS001                   119537664
RBS002                   96862208
RBS003                   237633536
RBS004                   89653248
RBS005                   762052608
RBS006                   371982336
RBS007                   354549760
RBS008                   115081216

8 rows selected.

select sum(bytes) from dba_segments where segment_name like 'RBS%';


Now I did the delete again (use the largest rbs from above info):

SQL> set transaction use rollback segment RBS005;

Transaction set.

SQL> delete from termhistory where historyid=19;

915798 rows deleted.

SQL> commit;

Commit complete.

My question is why the "delete" worked this time? I thought one RBS will
take over other RBS's space automatically if necessary. Since there is no
other transactions going on, which ever RBS (picked up by the tsansaction)
should not matter.