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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

Re: hot-backup recovery question

Fuad Arshad


Are you giving a alter tablespace  <tsname> end backup on the split node;
we do this all the time
when you tryo to being up the split mirror you need to first issue an alter tablespace <tsname> rnd backup and not do a recovery.
Rich Holland <holland@(protected):
I=92m trying to use a hot backup to make a copy of our production 817_32 =
using a 3rd disk mirror split operation. Here are the steps I=92m =

1. Create a text copy of the control file with:
alter database backup controlfile to trace;
2. For all tablespaces in the database, execute:
alter tablespace begin backup;
3. Verify they are all in hot backup mode via:
select count(*) from v$backup where not status =3D =91ACTIVE=92;
4. Split the mirrored disks (takes approximately 60 seconds).
5. Take all tablespaces out of hot backup mode via:
alter tablespace end backup;
6. Verify they are all out of backup mode via:
select count(*) from v$backup where status =3D =91ACTIVE=92;
7. Archive the current redo log via:
alter system archive log current;
8. Split the archived redo log file system=92s mirrors.

I then mount the data file file systems and archived redo log file =
system on
the target host and do:
SQL> connect / as sysdba
SQL> alter database recover automatic using backup controlfile until =
SQL> alter database recover cancel;

At this point, I get an error like this:
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get =
ORA-01194: file 83 needs more recovery to be consistent
ORA-01110: data file 83: '/oracle/PRD/data44/tsdata.data1'

In the alert log I see errors like this:
WARNING! Recovering data file 386 from a fuzzy file. If not the =
current file
it might be an online backup taken without entering the begin backup =
WARNING! Recovering data file 397 from a fuzzy file. If not the =
current file
it might be an online backup taken without entering the begin backup =
WARNING! Recovering data file 404 from a fuzzy file. If not the =
current file
it might be an online backup taken without entering the begin backup =

I=92ve tried both with the active control files which were copied as =
part of the
split (when the database was in backup mode) as well as removing them =
creating new copies on the target system (using the control.sql text =
copy I
created in step #1). Both attempts resulted in the same problem.

I=92m missing something obvious, but can=92t for the life of me figure =
out what it
is. I=92ve also had two other DBA=92s look at the procedure and =
they=92re scratching
their heads as well. Any help or insights would be greatly appreciated.

Rich Holland=A0=A0=A0=A0=A0=A0=A0 (913) 645-1950=A0=A0=A0=A0=A0=A0=A0 =
SAP Technical Consultant
print unpack("u","92G5S\=3D\"!A;F]T:&5R(\'!E