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: So how big is your buffer cache ?

Ellis R. Miller


Recently did some very informal benchmarking of PHP 5, Apache 2, against
Oracle 10G on Linux using PHP code form web application I originally
developed leveraging PHP 4, Apache 2, and MySQL on Linux. PHP 5 is fully OO
compliant and based on my several years of Java programming significantly
faster and more efficient in a compromising of MVC sort of way (not so true
with PHP 5, by the way, although the flexibility to script-away is still
tempting and nice).

A few important notes I thought may be of interest:

PHP 5 and Apache 2 installed on Windows 2000 (Dell desktop) with Oracle 10G
client already having been configured to connect to my Oracle 10G on Fedora
database. Leveraged the following link for the basic configuration under
"Installing as an Apache module:"


After following these basic instructions along with uncommenting the
following in my C:\PHP\php.ini file (showing a partial list below to
accentuate the removal of the ";" as it is a simple delimiter to overlook):


...I was able to connect to my Oracle 10G Fedora database only after adding
the following to my httpd.conf file:

# Set PHP related environmental variables
# Had to do this before I could connect
# Did not try process of elimination to see which one in particular
# may have done the trick (these were all set prior to this
# via the Windows Registry) but read somewhere TNS_ADMIN is the biggie
# man I am lazy as I could verify this in about two seconds or in less time
# than it took to mention this
SetEnv ORACLE_HOME "C:/Oracle/product/10.1.0/Client_1"
SetEnv TNS_ADMIN  "C:/Oracle/product/10.1.0/Client_1/network/admin"

# For PHP5
# configure the path to php.ini
PHPIniDir "C:/php"

Here is some source code that is taken from a couple very basic PHP FAQ's
including the one on OTN:

print "<HTML><PRE>";
$db = "<service_name>";
$c1 = ocilogon("scott","<password_goes_here>",$db);

function select_data($conn)
{ $stmt = ociparse($conn,"select * from emp where ename= :NAME");
$name = 'MILLER';
OCIBindByName($stmt, ':NAME', $name, -1);
echo $conn."----selecting\n\n";
while (ocifetch($stmt)){
  echo ociresult($stmt,"EMPNO")." ";
  echo ociresult($stmt,"HIREDATE")." ";
  echo ociresult($stmt,"ENAME")."\n";
echo $conn."----done\n\n";

print "</PRE></HTML>";

PHP 5 is fully OO compliant, has new, improved exception handling including
the try...catch syntax from Java, and is wicked fast. Personally, for my
money, Oracle 10G on Linux, PHP 5, Apache 2, given the option and
appropriate requirements, which I hate to mention as I hate picking up those
forms from the DMV in order to start that next "Hello World" IT project,
supersedes JSP and ASP .NET, although I have an appreciation for both
including the Mono project which is porting .NET to an open source platform:


I had Mono once and they way I got it was great:)

PHP 5 is, again, wicked-fast, which is a non-technical, home LAN term for it
outperforms the same code written in JSP or ASP .NET by some number I don't
wish to publish or argue I am just trying to redeem myself and offer up a
very viable if not common-sense alternative.

Keep in mind, unlike J2EE, PHP 5 still does not support connection pooling
but one can leverage SQL Relay: http://sqlrelay.sourceforge.net/sqlrelay/

Also, if one cares to track the total number of jobs on Dice including a
breakdown of programming languages and operating systems here is a good


From recent articles I have read the PHP number is grossly understated in
terms of projects that are currently in the works yet obviously do not
require/demand a lot of additional, external resources. Obviously, until
there is a bigger install base of mature PHP projects god-fearing IT
professionals such as myself will not be in great demand to get that PHP
code to return that list of EMP names in under 72 hours:)

Hope someone finds this interesting. Keep in mind, there is also an "add in"
or a means by which to extend JDeveloper to support PHP.


-----Original Message-----
From: oracle-l-bounce@(protected)
Sent: Sunday, August 29, 2004 4:50 PM
To: Oracle-L Freelists
Subject: Re: So how big is your buffer cache ?

On Sun, 2004-08-29 at 15:35, Richard Foote wrote:
> Hi Jared,
> That would be a real real shame as you do a fantastic job on this list. I
> just think you got it wrong this one time.

Could be. This is taking too much of my time and energy though.


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