Actually i am not using OCI directly. I have a Delphi application in which I would need to clone an open db connection. Not only username, password, and target database (this is easy and i already do that).
What I would need is also inherit context variables and global temporary tables content status at the moment in which the cloning operation takes place. It seems a very difficult, if not impossible, thing to achieve.
I am completely new to anything with Oracle or OCI,
Also, basic information:
Language: C
Oracle DB version: 11g
Trying to use OCI
I am trying to write a client that connects to an Oracle database and gets some information (obviously). On the OCILogon() step, I need the username, password, and db address. However, someone said there will be a tnsnames.ora file, and that should be enough.I've searched online and I have not been able to find anything that relates OCILogon() to tnsnames.ora, so here are my questions:
1) Can OCILogon() use tnsnames.ora at all?
2) Is there any other function that I should use instead of OCILogon() that would work with the tnsnames.ora
I am attempting to port some Pro*C code from Tru64 to AIX 6.1.I have compiled the PRO*C into an executable which is then called as follows:
host$ CJSPC004 /@WHDA 19/11/2012
Starting module : CJSPC004
Connected to the database
Running database procedure cjspk003.p_create_job_schedule
Module CJSPC004 completed successfully
However, when querying $? to get the status of the last command I get a non-zero code even though everything has worked.
host$ echo $?
39
On Tru64 this works fine with the echo $? returning a zero as expected:
host$ echo $?
0
The PRO*C was compiled using gcc
In the below code, the application is crashing @ free(svcname). should we delete the out variable or not?
{
char* svcname;
if (OCIAttrGet(eventhp, (ub4) OCI_HTYPE_EVENT, (dvoid *) &svcname, (ub4 *) &sizep, OCI_ATTR_SERVICENAME, dm_infop->errhp) != OCI_SUCCESS) {
pinlog(PIN_FILE_SOURCE_ID, __LINE__, LOG_FLAG_ERROR, " Unable to get service name.
");
return;
}
free(svcname);
}
Our API supports Oracle 11.2g but uses OCI v8 yet.This means I cant activate client caching as a new feature ? We should update to OCIv11 ?
View 5 Replies View RelatedWe have a occi application which is linked dynamically to occi lib on Solaris. Now during build we linked it with occi of Oracle 10.2.0.4 client but we want the same build to be able to run under Oracle 10G client as well as Oracle 11G client. But it seems that occi is not forward not backward compatible as name of dynamic occi lib has a version in it.
e.g
md1sisun26:/tools/oracle/10.2.0.4/lib->dump -Lv libocci.so
libocci.so:
**** DYNAMIC SECTION INFORMATION ****
.dynamic:
[INDEX] Tag Value
[1] INIT 0xc6110
[2] FINI 0xc62b8
[code]...
As you can see when we run our occi application under Oracle 11G client it fails as there is no libocci.so.10.1 .
I am using OCI and instant_client (11.2.0.3.0) in my C++ program (on Windows 7) to connect remotely to 11G database. While doing a connection using server name as well as servername:port/service_name as connection strings, I am getting error of ORA-12504 TNS:listener was not given the SERVICE_NAME in CONNECT_DATA. According to instant client FAQ & white paper at [URL]..., no tnsnames.ora is required for instant client. Then why could I be getting this error? I ensured that only the instant client directory is in Path environment variable. There was a ODBC driver installed on this same host.
View 3 Replies View RelatedI wrote a simple OCCI program and ran valgrind with it. I got some memory leak in the program. I tried to search around but couldn't get any answers. I have tried to compile the program using gcc version 4.5, and icpc version 12.0.4 and they both gave the same errors. The OS I am using is RedHat Linux 6.1.
#include "occi.h"
#include <iostream>
#include <string>
int main() {
oracle::occi::Environment *theOCCIEnvPtr = NULL;
[Code] .......
and one of the leaks is :
==9744== 32 bytes in 1 blocks are definitely lost in loss record 61 of 224
==9744== at 0x4A07279: malloc (vg_replace_malloc.c:263)
==9744== by 0x62D9147: slzsetevar (in /apps/oracle_client/libclntsh.so.11.1)...
We have code that occasionally errors with ORA-12151, with tracing indicating some funk surrounding OCI calls to OCIPing(), OCIBreak(), and OCIReset(). What the code is trying to do here is release a connection from a pool (our implementation, not OCIPool) and before releasing it trying to make sure nothing is actively running on the connection etc. The environment is created in THREADED mode (ie not non-blocking).
Reading the documentation its not really clear to me if OCIBreak() and OCIReset() are really intended to be called while in THREADED mode.
Is it a bad idea to call break/reset as part of a general connection-reset routine?
The basic control flow (minus error handling etc) is:
<pre>
reset() {
int rc = OCIBreak(connection_, err_);
rc = OCIReset(connection_, err_);
if (OCIPing(connection_, err_, OCI_DEFAULT) != OCI_SUCCESS) {
return errors;
}
return 0;
}
</pre>
I install Oracle instant client 11g in my Windows 7(32bit), and use MSVC6++ to test program occidml.cpp, compile is no problem, but when I run it, it crash on create Connection. I have tried to link with different version of OCCI library ( v8,v9), but all crash on create Connection.
View 0 Replies View RelatedI am trying to fetch the data from system table "FLOWS_020100.WWV_FLOW_ACTIVITY_LOG1$" in Oracle Express edition 10.2.0.3 database, using the OCI library on Windows with C++
This table has a TIMESTAMP column of date type.
I've the following query as below:
select TIME_STAMP from FLOWS_020100.WWV_FLOW_ACTIVITY_LOG1$ where TIME_STAMP > to_date('31/OCT/12 23:59:59', 'DD-MON-YY HH24:MI:SS') order by TIME_STAMP asc;
For this, first I am preparing the query as below:
select TIME_STAMP from FLOWS_020100.WWV_FLOW_ACTIVITY_LOG1$ where TIME_STAMP > :PKVAL order by TIME_STAMP asc;
Before calling OCIExecute(), I am setting the PKVAL buffer to following value:
"to_date('31/OCT/12 23:59:59', 'DD-MON-YY HH24:MI:SS') "
& calling the OCIBindByName function with data type as SQLT_DATE.
But when the OCIExecute is called, my program crashes with access violation
what is the correct way to pass the date value in query to OCI? How do we bind the date values?
I want to monitor the stream activity with strmmon tool. How to compile the strmmon.mk? I was seeing with visual studio command prompt but it does not work properly.
Oracle Version: 10.2.0.4
Server: Win 2008 R2
There are only OCI headers in 9.2.0/rdbms/demo directory in our installation of Oracle 9.2:
9.2.0/rdbms/demo/ocixad.h
9.2.0/rdbms/demo/oci.h
9.2.0/rdbms/demo/oci1.h
...
In Oracle 10.2 installation there are OCI headers in rdbms/public directory:
10.2.0/rdbms/public/ocidem.h
10.2.0/rdbms/public/ocidfn.h
10.2.0/rdbms/public/ocikpr.h
10.2.0/rdbms/public/oci.h
10.2.0/rdbms/public/oci1.h
...
What should be installed additionally to have OCI headers in rdbms/public in Oracle 9.2.0?
I am having an issue to connect my C++ application to my Oracle DB. When my code calls
oracle::occi::Environment::createEnvironment(),
I get an error "ORA-01804: failure to initialize timezone information".
The application works on other people's Windows machine with their Oracle DB. But it doesn't work from my machine connecting to their Oracle instance. So I guess the issue does not come from my instance but rather from my Oracle dlls maybe?
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0
I am in the process of converting my skill in oracle and this time PRO*C from Windows to Linux. I have oracle 11g R2 installed on a UBUNTU (12.04) server and have installed the instant client as described in
[URL]
This has a query which will run in SQLPLUS but fails with PRO*C
:~/Projects/proc/proctest1$ proc INAME=proctest.pc SQLCHECK=NONE ONAME=proctest.c LNAME=proctest.lis LTYPE=long
Pro*C/C++: Release 11.2.0.3.0 - Production on Mon Apr 22 21:00:18 2013
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
System default option values taken from: /home/neill.rutherford/instantclient_11_2/precomp/admin/pcscfg.cfg
PCC-W-02109, SQLCHECK=NONE is no longer supported.. using SYNTAX
[code]....
I work with oracle 10g, on windows 7. sometime when i try to start my sqlplus in prompt command this message display.
C:UsersSony>sqlplus
SP2-1503: Unable to initialize Oracle call interface
SP2-0152: ORACLE may not be functioning properly
But the solution people have proposed into the forum are:
1 - check the environment variable Oracle_home and modify if it ending by ""
2 - or try tho run my promt command as Administrator.
I try the both, but only the second works. while now i don't understand why it works when i start the promt command as Administrator and why it no works when i don't run it like administrator. Another thing is i am the only user of my computer, i have only one session (administor session).
In my application, when I passed a Type Array as parameter to the stored procedure and when the Type Array is large enough(normally 3000 type objects， each objects has about 15 attributes), the OCIObjectSetAttr performance deteriorates large enough from below 1 millisecond to 1~3 miliseconds.
I am using OCI 11gR2,
I'm trying to compile an hello world example on my computer. I've read the documentation for requirements occi on the site
[URL]....
It says that the g++ compiler 3.4.6 or later is supported. I have:
Ubuntu 12.04
gcc 4.6.3
oracle instant client 11.2
g++ main.cpp -c -I/home/tim/skrivbord/bin/oracle/instantclient_11_2/include/ -D_REENTRANT -g -Wall
g++ -o pippo -L/home/tim/skrivbord/bin/oracle/instantclient_11_2/ -locci -lclntsh -lociei -lnnz11 main.o
main.o: In function `main':
/home/tim/skrivbord/dev/cpp/main.cpp:21: undefined reference to
[code]....
I am facing the problem in windows 7. I have oracle client 10g installed. When i run sqlplus from comand prompt it gives the error as:
C:Userssrirams>sqlplus
SP2-1503: Unable to initialize Oracle call interface
SP2-0152: ORACLE may not be functioning properly
When I select the executable 'sql+' and run as administrator it works fine.
when i try to connect with sqlplus or toad then i get an error
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:Users>sqlplus
SP2-1503: Unable to initialize Oracle call interface
SP2-0152: ORACLE may not be functioning properly
C:Users>
and i want to tell what i do before it-my all files were be converted in .FLT then i shorted out this problem after that when i tried to connect with sqlplus or toad then i get above error.and i have restarted my system but throwing same error.
i am using oracle 11.2.0.1 on windows 7
When I use Forms_ddl('set role My_Role IDENTIFIED BY PWD'); in form's "When-New-From-Instance" to grant a role to a user.
What should I do for the same for a report?
Is there any way to grant roles to a session on the time of connection?
How to find the sid from v$session of my current session.
I want to ask:
Let say I have open 10 TOAD session and only in one toad session i have fired a sql query ( the rest 9 session are just blank), then the rest 9 status are in active status. Now, how i can figure out which sid ( from v$session ) belongs to which session as all the 9 session having nothing to run.
Quote: My main intention is to find out the current session sid as soon as it make connection with DB.
We have a Data Source with min_pool_size (10) and max_pool_size (20). A Data Source is by default a connection pool. By starting a transaction we are retrieving a connection from the pool (i.e., opening it to retrieve data, perform queries, inserts and updates). Our application server is JBoss. An application workflow uses many transactions to build a product. The same connection is not used by the application for the entire workflow; but, it uses and returns them to the connection pool. We do not use Java syntax like "rs.close():"... this is performed by iBATIS.
On the Linux side when we execute a "ps" command (ps -elf|grep -i ora) we see all the Oracle processes. A further refinement of that command (ps -elf|grep -i local=no)shows a list of the "waiting" connections in the connection pool. The DB may be queried with the following syntax:
SELECT schemaname, sid, serial# FROM gv$session where schemaname = 'APP_USER' order by SID;
A list of connected sid and serial numbers is returned, identifying which connections are in use. From here we are able to force the connection to trace by executing the following:
exec dbms_monitor.session_trace_enable(249, 6595, TRUE, FALSE); ! 249 and 6595 being SID and Serial# from query above
There should be no need to execute the inverse, since the connection is returned to the pool when the transaction is committed or rolled back.
exec dbms_monitor.session_trace_disable(249, 6595);
We are trying to trace in order to use the Quest Benchmark Factory. Their instructions request the following syntax be applied to each session:
alter session set events '10046 trace name context forever, level 4';
and again, the inverse should not be necessary.
alter session set events '10046 trace name context off'
When it became too cumbersome to alter each session as it appeared, we issued an "alter system" to monitor (trace) everything. The trace files filled the disk, and four hours of testing was stopped two hours in. Doing a system level trace is probably not a good idea.
My first inclination was to create a post-logon trigger to set trace in the session; however, these connections, coming from an JBoss connection pool, do not logon each time, and I presume that they are not all the "same session".
We opened a support ticket with Quest last Friday and do not have an answer yet. This was the third ticket with them, the first to get Benchmark Factory installed (the original installer did not work). The second ticket was to setting up a shared directory on Linux with a folder on Windows, a setup configuration required by their tool. The third ticket to address this issue.
They needed to contact "the developers" to answer the last two questions. Their latest suggestion is to fix ticket two so we "won't need to trace" anything. How do I set trace in these connections?
I have an urgent requirement to kill an existing session if a new session starts for the same user. I have been reading lot of blogs and posts on the above topic, but could clearly tell me how to do it.
I thought of putting a process in 101 page when login button is pressed to catch this and kill the old session.
We are using Apex 4.0/Oracle 10gR2/ Hp-Ux, We noticed that there is a process Running in Two Sessions that seems running since 3 Hours using 60% CPU,** 30% given below sql it executes in two Sessions!
declare function x return boolean is begin -- if instr(upper(:F4000_P4651_PLUG_SOURCE),'ORDER BY')>0 then
declare
l_position number := 0;
begin
loop
l_position := instr(upper(:F4000_P4651_PLUG_SOURCE),'ORDER BY ',l_position + 1) ;
exit when instr(upper(:F4000_P4651_PLUG_SOURCE),'ORDER BY ',l_position + 1) = 0 ;
[code]....
Instead of giving permission directly to v$session and gv$session to a developer, Is there any other way to do the same?
View 3 Replies View RelatedI have a query regarding the cloning of a database.
Actually, i have made the two machine on a single system(Laptop) and now i want to clone the database, so for that i am unable to move the database backup from one Machine to another.
how can i move the backup and which command is applicable for that.
Note: - Listener/TNS is already configured on both the database.
I have an Oracle 10.1 database on a Windows 32 bit platform that I am attempting to clone to a new server to make a development instance.
For this particular scenario the database needs to stay at version 10.1. Both servers are Windows Server 2003. Following oracle docs I have copied the home folder and am attempting to run OUI with the clone switch.
OUI crashes and reports the error as "unknown".
OUI also crashes if I try to run it without the clone switch from gui.
Why this occurs, and have confirmed that PATH is correct etc on the new dev server and the other obvious stuff.
I just need a quick way of getting this dev server instance up and running AND maintaining the same database version (10.1). I thought the clone operation would be a good option but don't know how to troubleshoot when the error is "unknown".
I am cloning my prod db to test with the rman active clone command. I can successfully clone my DB, but after a few hours or so I see messages in the alert log that I have corrupted blocks in several datafiles. Note, i dont see these messages in my PROD DB therefore I think that DB has no corruption. I have few questions:
1) I was reading tha having tables or indexes set with the NOLOGGING option can cause objects to be unrecoverable. Would this affect my active clone?
2) I know you can either change a DB or tablespace to force logging. Is there a query I can use to determine if the DB is in force logging mode.
ALTER TABLESPACE tablespace_name FORCE LOGGING;
ALTER DATABASE FORCE LOGGING;
3) Lastly how to check as why my clone DB would have corrupted blocks.
Here is the clone command I am using.
rman catalog=rman/rman@proddb target=sys/sys@proddb << EOT
connect auxiliary sys/sys@clonedb
duplicate target database to clonedb from active database nofilenamecheck
pfile=/u01/app/oracle/product/11g/dbs/initclonedb.ora ;
exit
EOT
I'd like to confirm whether its possible to clone a database instance from a RAC cluster to a single server, with an additional issue that the RAC cluster is running Oracle 10g and the single server is running 11g. Can I do that directly or do I need an intermediate step to upgrade the database instace to 11g? Or can I even use exp/imp on RAC?
View 2 Replies View Related