RE: [PHP-DB] OCIPLogon
the first OCIexecute($statement, OCI_DEFAULT);
has not been commited
so when you reconnect , your cursor is closed and rollbacked with the 2nd PLogon
-Message d'origine-
De : Sapporo [mailto:[EMAIL PROTECTED]
Envoyé : mercredi 9 juillet 2003 16:03
À : [EMAIL PROTECTED]
Objet : [PHP-DB] OCIPLogon
Hi,
I'm trying to avoid excessive database connections within my app.
From the docs, I figured that the following code would insert 2 rows of
data into table Dummy, since the connection would be reused and the
transactions aren't isolated by using OCINLogon() (error handling left
out for readability):
$conn = OCIPLogon(scott, tiger, testdb);
$statement = OCIparse($conn, INSERT INTO Dummy VALUES ('A'));
OCIexecute($statement, OCI_DEFAULT);
$conn = OCIPLogon(scott, tiger, testdb);
$statement = OCIparse($conn, INSERT INTO Dummy VALUES ('B'));
OCIexecute($statement, OCI_DEFAULT);
OCICommit($conn);
But it turns out that only the second row gets written to the database.
So, what difference would it make to use OCINLogon()? Is this the
expected behaviour?
How does everyone else handle this? Is it possible to store database
connections in a session?
TIA,
-sapporo.
BTW, I'm using PHP 4.3 on Linux talking to Oracle9i.
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Re: [PHP-DB] OCIPLogon , maximum number of sessions apache/php- Oracle
Hi Michael, So what you are saying is that apache/php will keep opening sessions until oracle runs out of processes or cursors or memory or hits session_per_user maximum ?? I was thinking of experimenting with the profile parameter IDLE_TIME Profile Parameter to make oracle close open sessions after a certain amount of time , have you any experience with this? I have open_cursors = 500 processes = 200 max_enabled_roles = 30 regards Steve At 8:24 AM +0200 9/7/02, Michael Bretterklieber wrote: Hi, this depends on your settings in the initinstance.ora in the directory /opt/oracle/OraHome1/admin/instance/pfile dir. Here are some settings: processes = 150 open_cursors = 300 max_enabled_roles = 30 you also have to set the sizes of the shared-memory pool. bye, Steve Farmer wrote: Hi all, Does anyone know how many sessions can be opened by apache/php to Oracle using OCIPlogon, or what parameter setting controls this? TIA Steve -- -- Michael Bretterklieber LCP JAWA Management Software GmbH Liebenauer Hauptstr. 200 A-8041 GRAZ Tel: ++43-(0)316-403274-12 Fax: ++43-(0)316-403274-10 GSM: ++43-(0)676-93 96 698 [EMAIL PROTECTED] homepage: http://www.jawa.at - privat --- E-mail: [EMAIL PROTECTED] homepage: http://www.inode.at/mbretter -- ...the number of UNIX installations has grown to 10, with more expected... - Dennis Ritchie and Ken Thompson, June 1972 -- - Minds are like parachutes, they work best when open Support free speech; visit http://www.efa.org.au/ Heads Together Systems Pty Ltd http://www.hts.com.au Email: [EMAIL PROTECTED] Tel: 612 9982 6767 Fax: 612 9981 3081 -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DB] OCIPLogon , maximum number of sessions apache/php - Oracle
Hi, first we when we started up with oracle we had problems with these params: processes, open_cursors, max_enabled_roles After a week or so oracle was not able to allocate shared memory, something like this: ORA-04031: unable to allocate 4200 bytes of shared memory (shared pool,TRIGGER$,sga heap,state objects) ORA-00604: error occurred at (remember I'm allways talking about Oracle under Linux) This had 2 reasons: 1. wrong kernel-params (shared-memory-limits and semaphore-limits) 2. a memory leak in Oracle 8.1.7 (applying patchset 3 resolved this) bye, Steve Farmer wrote: Hi Michael, So what you are saying is that apache/php will keep opening sessions until oracle runs out of processes or cursors or memory or hits session_per_user maximum ?? I was thinking of experimenting with the profile parameter IDLE_TIME Profile Parameter to make oracle close open sessions after a certain amount of time , have you any experience with this? I have open_cursors = 500 processes = 200 max_enabled_roles = 30 regards Steve At 8:24 AM +0200 9/7/02, Michael Bretterklieber wrote: Hi, this depends on your settings in the initinstance.ora in the directory /opt/oracle/OraHome1/admin/instance/pfile dir. Here are some settings: processes = 150 open_cursors = 300 max_enabled_roles = 30 you also have to set the sizes of the shared-memory pool. bye, Steve Farmer wrote: Hi all, Does anyone know how many sessions can be opened by apache/php to Oracle using OCIPlogon, or what parameter setting controls this? TIA Steve -- -- Michael Bretterklieber LCP JAWA Management Software GmbH Liebenauer Hauptstr. 200 A-8041 GRAZ Tel: ++43-(0)316-403274-12 Fax: ++43-(0)316-403274-10 GSM: ++43-(0)676-93 96 698 [EMAIL PROTECTED] homepage: http://www.jawa.at - privat --- E-mail: [EMAIL PROTECTED] homepage: http://www.inode.at/mbretter -- ...the number of UNIX installations has grown to 10, with more expected... - Dennis Ritchie and Ken Thompson, June 1972 -- -- Michael Bretterklieber LCP JAWA Management Software GmbH Liebenauer Hauptstr. 200 A-8041 GRAZ Tel: ++43-(0)316-403274-12 Fax: ++43-(0)316-403274-10 GSM: ++43-(0)676-93 96 698 [EMAIL PROTECTED] homepage: http://www.jawa.at - privat --- E-mail: [EMAIL PROTECTED] homepage: http://www.inode.at/mbretter -- ...the number of UNIX installations has grown to 10, with more expected... - Dennis Ritchie and Ken Thompson, June 1972 -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
