All Oracle Error Codes
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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: Session PGA memory max exceeded 2 GB and crashes.

Jason Heinrich


Are you able to modify this code? Using MONTHS_BETWEEN in your WHERE clause
is forcing the full table scan, which, I suspect, is causing a large sort
in-memory. Placing an index on LAST_USED_DATTIM and rewriting your WHERE
clause thusly:

Pk_Utils.fnc_get_sys_par('HOUSE_AUDIT') * (-1) )

would avoid both the scan and the sort. I don't know if this will solve all
of your PGA usage, but it should help.

On 12/20/06 7:57 AM, Norman Dunbar wrote:

> The DELETE does a full table scan of a table with 1,527,000 rows of
> average length 102 bytes. The table has 22,008 blocks (8K block size)
> and 6 free blocks and was analysed earlier this week - even with my
> limited arithmetical abilities, that's a grand total of approx 150MB of
> data (as per rows * length) or approx 175 MB if you take blocks * block
> size. However, that will be part of the buffer cache and noty in the
> PGA.
> Obviously, there will be a cursor opened in the PGA but I cannot see
> why it would need over 2 GB. The delete uses no UNDO at all - there are
> no rows selected for deletion.
>    Pk_Trace.ENTER ( 'Delete HAZ_RGBA_REG_BATCH_AUD records' );
> Pk_Utils.fnc_get_sys_par ( 'HOUSE_AUDIT');
> Pk_Trace.LEAVE ;
>      Pk_Trace.REPORT_ERROR;
>      RAISE;
> END;
> In the WHERE clause above, is the PK_UTILS package being called for
> each row or just once. 10046 trace didn't give any useful help. (Nor did
> single stepping the code in TOAD - it executed as one statement, the
> The PK_UTILS code makes two calls to PK_TRACE internally and this
> simply writes a record to a logfile using UTL_FILE.
> This is about step 7 of 10 in the houskeeping code and everything
> before it uses MONTHS_BETWEEN etc as above - different tables are
> involved along with a different parameter from the fnc_get_sys_par call.
> That's all. So far, nothing is actually being deleted as we have not hit
> anything older than the retention period in any of the preceeding or
> following DELETEs.

Jason Heinrich
Oracle Database Administrator
Pensacola Christian College