Oracle 8i CORBA and Visibroker

Hello.
I am trying to get a Visibroker client to talk to a CORBA server deployed in Oracle 8i. This is being done to test the interoperability between the two ORBs. Does anyone have a sample code for the client ?
Thanks,
Santosh.

Not sure. But 8.1.7 client and 9i Lite seem to do OK together on Win2000. Having problems running java examples though.

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Poor perfomance CORBA and EJB in Oracle 8i

Here are the perfomance results of methods invocations
(1000 invocations of empty method in an loop)
Oracle 8i CORBA ~100ms per method
Oracle 8i EJB ~100ms per method
Jonas EJB server ~5ms per method
Java RMI ~3ms per method
Why Oracle 8i is so slow, even compared with noncommercial
EJB server Jonas? Is there any way to speed this up? Source codes of perfomance testing programs available upon request.

Oracle Jserver is quite fast and scalable. Nevertheless, there exists an important overhead in calling a CORBA or EJB method, so you should desing "heavy" functions in your EJB/CORBA objects. Instead of calling 10 times little methods, call one time a hevay one, and you'll find that JServer perforns very fast and reliably.
Best regards

How a procedure is compiled in oracle ? (implicit and explicit compilation)

how a procedure is compiled in oracle ? (implicit and explicit compilation)

When you create a proceudre oracle automatically compile and stored it. Use the following syntax to compile a procedure
ALTER PROCEDURE hr.remove_emp COMPILE;
Thanks

Not able to see ikm oracle incremental update and ikm oracle slowly changing dimensions under PHYSCIAL tab in odi 12c

not able to see ikm oracle incremental update and ikm oracle slowly changing dimensions under PHYSCIAL tab in odi 12c
But i'm able to see other IKM's please help me, how can i see them

Nope, It has not been altered.
COMPONENT NAME: LKM Oracle to Oracle (datapump)
COMPONENT VERSION: 11.1.2.3
AUTHOR: Oracle
COMPATIBILITY: ODI 11.1.2 and above
Description:
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Memory and No. of Processor calculation for Oracle EBS R11 and R12

Can some one please tell me …. How to calculate required Memory and No. of Processors for Oracle EBS R11 and R12.
For example we have 50 Concurrent users and 100 named (i.e. the users which are doing only Data entry.), so how to How to calculate required Memory and No. of Processors
Please guide me on the same.
Thanks,

Please refer to the following links, it may be helpful:
Oracle Applications Benchmark White Papers
http://www.oracle.com/apps_benchmark/html/white-papers-e-business.html
Oracle Applications Standard Benchmark White Papers
http://www.oracle.com/apps_benchmark/html/white-papers.html
Hardware requirements for Oracle APPS
Hardware requirements for Oracle APPS

Oracle Data Profiling and Data Quality

Hi,
How to create metabase for Oracle Data Profiling and Data Quality.Is metabase and repository are same.

Hi,
You can create a metabase in the Metabase Manager:
- Expand Control Admin
- Click on Metabases
- in the Metabases window, right-click on the white area and select Add...
- go through the wizard to create your metabase
This is documented in the ODQ/ODP tutorial (http://www.oracle.com/technology/products/oracle-data-quality/pdf/oracledq_tutorial.pdf) and in the Documentation (in Metabase Manager or Oracle Data Quality go to Help and then Manuals).
Thanks,
Julien

Difference in select for update of - in Oracle Database 10g and 11g

Hi, I found out that Oracle Database 10g and 11g treat the following PL/SQL block differently (I am using scott schema for convenience):
DECLARE
  v_ename bonus.ename%TYPE;
BEGIN
  SELECT b.ename
    INTO v_ename
    FROM bonus b
    JOIN emp e ON b.ename = e.ename
    JOIN dept d ON d.deptno = e.deptno
   WHERE b.ename = 'Scott'
     FOR UPDATE OF b.ename;
END;
/While in 10g (10.2) this code ends successfully (well NO_DATA_FOUND exception is raised but that is expected), in 11g (11.2) it raises exception "column ambiguously defined". And that is definitely not expected. It seems like it does not take into account table alias because I found out that when I change the column in FOR UPDATE OF e.empno (also does not work) to e.mgr (which is unique) it starts working. So is this some error in 11g? Any thoughts?
Edited by: Libor Nenadál on 29.4.2010 21:46
It seems that my question was answered here - http://stackoverflow.com/questions/2736426/difference-in-select-for-update-of-in-oracle-database-10g-and-11g

The behaviour seems like it really is a bug and can be avoided using non-ANSI syntax. (It makes me wonder why Oracle maintains two query languages while dumb me thinks that this is just a preprocessor matter and query engine could be the same).

Replacing Oracle's FIRST_VALUE and LAST_VALUE analytical functions.

Hi,
I am using OBI 10.1.3.2.1 where, I guess, EVALUATE is not available. I would like to know alternatives, esp. to replace Oracle's FIRST_VALUE and LAST_VALUE analytical functions.
I want to track some changes. For example, there are four methods of travel - Air, Train, Road and Sea. Would like to know traveler's first method of traveling and the last method of traveling in an year. If both of them match then a certain action is taken. If they do not match, then another action is taken.
I tried as under.
1. Get Sequence ID for each travel within an year per traveler as Sequence_Id.
2. Get the Lowest Sequence ID (which should be 1) for travels within an year per traveler as Sequence_LId.
3. Get the Highest Sequence ID (which could be 1 or greater than 1) for travels within an year per traveler as Sequence_HId.
4. If Sequence ID = Lowest Sequence ID then display the method of travel as First Method of Travel.
5. If Sequence ID = Highest Sequence ID then display the method of travel as Latest Method of Travel.
6. If First Method of Travel = Latest Method of Travel then display Yes/No as Match.
The issue is cells could be blank in First Method of Travel and Last Method of Travel unless the traveler traveled only once in an year.
Using Oracle's FIRST_VALUE and LAST_VALUE analytical functions, I can get a result like
Traveler | Card Issue Date | Journey Date | Method | First Method of Travel | Last Method of Travel | Match?
ABC | 01/01/2000 | 04/04/2000 | Road | Road | Air | No
ABC | 01/01/2000 | 15/12/2000 | Air | Road | Air | No
XYZ | 01/01/2000 | 04/05/2000 | Train | Train | Train | Yes
XYZ | 01/01/2000 | 04/11/2000 | Train | Train | Train | Yes
Using OBI Answers, I am getting something like this.
Traveler | Card Issue Date | Journey Date | Method | First Method of Travel | Last Method of Travel | Match?
ABC | 01/01/2000 | 04/04/2000 | Road | Road | <BLANK> | No
ABC | 01/01/2000 | 15/12/2000 | Air | <BLANK> | Air | No
XYZ | 01/01/2000 | 04/05/2000 | Train | Train | <BLANK> | No
XYZ | 01/01/2000 | 04/11/2000 | Train | <BLANK> | Train | No
Above, for XYZ traveler the Match? clearly shows a wrong result (although somehow it's correct for traveler ABC).
Would appreciate if someone can guide me how to resolve the issue.
Many thanks,
Manoj.
Edited by: mandix on 27-Nov-2009 08:43
Edited by: mandix on 27-Nov-2009 08:47

Hi,
Just to recap, in OBI 10.1.3.2.1, I am trying to find an alternative way to FIRST_VALUE and LAST_VALUE analytical functions used in Oracle. Somehow, I feel it's achievable. I would like to know answers to the following questions.
1. Is there any way of referring to a cell value and displaying it in other cells for a reference value?
For example, can I display the First Method of Travel for traveler 'ABC' and 'XYZ' for all the rows returned in the same column, respectively?
2. I tried RMIN, RMAX functions in the RDP but it does not accept "BY" clause (for example, RMIN(Transaction_Id BY Traveler) to define Lowest Sequence Id per traveler). Am I doing something wrong here? Why can a formula with "BY" clause be defined in Answers but not the RPD? The idea is to use this in Answers. This is in relation to my first question.
Could someone please let me know?
I understand that this thread that I have posted is related to something that can be done outside OBI, but still would like to know.
If anything is not clear please let me know.
Thanks,
Manoj.

Oracle 9i Database and Developer Installation

I am a student going through the Oracle Developer Certification and I am hoping someone can help me with some troubleshooting. This has to do with installing 2 different services on 2 home directories. I installed the Oracle 9i database enterprise edition on the c drive on my laptop. Today I installed the Developer software as well on the c drive on a different directory. I now have the problem that I cannot connect to SQLPlus on the database side and I can not access datatbase connection on the Developer/Form side either. When I installed the developer software I created a new directory called OracNT since it would not allow me to install it on the orahome90 directory (database was installed here)....Does anyone have any advice on what to do? I have install and unistalled both the database and the Developer software and I am getting the same issue...All help would be appreciated.
lari

Lari,
Not quite the right forum for this, but I suspect your tnsnames.ora file in both the
network directories under the two ORACLE_HOMEs does not have an entry
for the local database.
On trying to connect you should get an error message and number. Use these
and search within metalink, there are a number of good articles on network
configuration.
There are also network configuration assistants available from the database windows program
menu.
David

Oracle 9i Database and Solaris 10 Zones

Can an existing oracle 9i database be moved into a new zone? The database resides on it's own filesystem. The server is runnign Solaris 10, and the zones are not set up yet, but Oracle is installed, and the 2 databases are up and running.
Basically there are 2 existing oracle 9i databases, and I want to setup 2 zones, where none other than the default global exist right now, and have each database in a zone.
Thanks in advance.

You need to do the following -
Configure loopback mount points from the global zone into the local zone through zonecfg (one for Oracle binary, other for Oracle data). I am assuming that you want to share the same Oracle binary location between all the zones. The Oracle database mounts must be separate & make sure that you put them in the respective zone's config only.
Create an oracle user with dba group in both the zones. It's best if the user IDs & group IDs across all the zones & global zone match.
Stop both the database instances in the global zone.
zlogin to a zone, su as oracle and startup the instances.
Hope that works!

Oracle 10g XE and Oracle 8.1

HI,
I am new in oracle and I installed both Oracle 10g XE and after Oracle 8.17 Standard with Apache server. Does anybody know why Oracle 10g XE doesn't start (doesn't find APEX) when Oracle 8.17 is running on the same computer?
Tks,
Laurentiu

You can not use XE parallel with another Oracle instance. Only one instance per network.
Cheers!

What are the differences between oracle adf 10g and adf 11g

Could you please let me know what are the diff b/w oracle adf 10g and 11g, i tried in many user guides but i could not find it.
Thanks in advance,
Poli Reddy P

893771 wrote:
Hi all,
I would like to know what the differences between Oracle and other NoSQL database are.
When and why should we use Oracle?I suggest that you start here:
http://www.oracle.com/technetwork/database/nosqldb/overview/index.html
Is Oracle NoSQL database link with Big Data Appliance?Yes, Oracle NoSQL Database will be a component of the Big Data Appliance.
Can we use map-reduce on a single personal computer? How should we install Oracle NoSQL database to use map reduce on a single personal computer?Yes, I believe you can run M/R on a single computer. Consult the various pieces of documentation available on the web. You may run Oracle NoSQL Database on the same computer that you are running M/R on, but it is likely that they will compete for CPU and IO resources and therefore performance may suffer.
Do we also have eventual consistency with Oracle NoSQL database? Yes.
Can we lose data if master node fails?If you run Oracle NoSQL Database with the default (recommended) durability settings, then if the master fails, a new one will be elected and data is not lost.
Are transactions ACID with Oracle NoSQL database? How can we prove it?Yes, each operation is executed in an ACID transaction. The API has the concept of "multi" operations which allow the caller to perform multiple operations on sets of records with the same major key, but different minor keys. Those operations are also performed within a transaction.
Charles Lamb

How to configure global transaction wthin Oracle AS JMS and Oracle JMS

How to configure global transaction if I take a message from Oracle JMS(AQ) and send it to the Oracle JMS?

Which version of OC4J are you working on?
In OC4J 10.1.3.x, presume your OC4J JMS listens messages via MDB which uses a resource adapter as a message listener. The resouce adaper could be the generic JMS adapter deployed in OC4J as the default.
Resource adapter configuration to support MDBs is included in the standard ra.xml file, which lists the message listener types that the resource adapter supports.
The MDB developer or deployer configures the MDB in the ejb-jar.xml file, through a <message-driven> element.
In addition to above, configuration in the ejb-jar.xml file specifies whether an MDB uses transactions.
1) The <transaction-type> subelement of <message-driven> in ejb-jar.xml has a value of Container, and the <trans-attribute> subelement of <container-transaction> (under the <assembly-descriptor> element) has a value of Required. In this circumstance, if there is an imported transaction, then message delivery and related work are performed within that transaction. If there is no imported transaction, OC4J creates a transaction, and message delivery and related work are performed within that transaction.
2) The <transaction-type> subelement of <message-driven> in ejb-jar.xml has a value of Bean. In this circumstance, the MDB manages the transaction. If a transaction is imported, OC4J will suspend it before the message delivery method call to the MDB, in order to avoid conflict.
Message delivery is not transacted if the <transaction-type> subelement of <message-driven> in ejb-jar.xml has a value of Container, but the <trans-attribute> element has a value of NotSupported. If there is an imported transaction in this circumstance, OC4J will suspend the transaction before the message delivery method call to the MDB.
Details could be found from OC4J Resource Adapter Guide.

Different Results from SQL-Query in Oracle 10.2 and Oracle 11.2

Look at the following example:
CREATE TABLE GZP_PLAN (GZP_ID
NUMBER(9) NOT NULL, PARENT_GZP_ID NUMBER(9),
CONSTRAINT GZP_PLAN_PK1 PRIMARY KEY(GZP_ID)
USING INDEX
TABLESPACE USERS
TABLESPACE USERS;
insert into GZP_PLAN values(1,NULL);
CREATE TABLE GZP_WB (OBJECTID NUMBER
NOT NULL, GZP_ID NUMBER(10),
CONSTRAINT GZP_WB_PK1_1 PRIMARY KEY(OBJECTID)
USING INDEX
TABLESPACE USERS
TABLESPACE USERS;
insert into GZP_WB values(1,1);
CREATE OR REPLACE VIEW VW_GZP (GZP_ID1) AS
SELECT xxx.gzp_id
FROM gzp_plan xxx
WHERE gzp_id IN (
SELECT MAX (z.gzp_id) zzz
FROM gzp_plan z
START WITH z.gzp_id = xxx.gzp_id
CONNECT BY PRIOR gzp_id = parent_gzp_id);
-- query
select a.* from GZP_WB a where gzp_id in (select gzp_id1 from vw_gzp);
Result in Oracle 10.2. (Windows Server 2003 32-bit, Oracle 10.2.0.2 or Oracle 10.2.0.5, Enterprise Edition)
OBJECTID GZP_ID
*1 1*
Result in Oracle 11.2 (Windows Server 2008 64-bit, Oralcle 11.2.0.2, Enterprise Edition or Standard Edition One)
no rows selected
The result of the following queries are identical in Oracle 10.2 and 11.2
SQL> select * from GZP_WB where to_char(gzp_id) in
2 (select to_char(gzp_id1) from vw_gzp);
OBJECTID GZP_ID
1 1
SQL>
SQL> select a.* from GZP_WB a, vw_gzp b where a.gzp_id=b.gzp_id1;
OBJECTID GZP_ID
1 1

The solution is Oracle 11.2.0.3 - patchset released 11th November.

Oracle.sql.BLOB and oracle.sql.STRUCT

I'm development a application in Java with oracle, to manage media files. When I try to insert into oracle , I have this problem "oracle.sql.BLOB cannot be cast to oracle.sql.STRUCT" , and I don't know what that can be ..
This is my code , please help with that.. If you have a smaple code of java and oracle to insert media , that will be a great help ..
public void loadDataFromStream(OracleConnection con)
try {
Statement s = con.createStatement();
OracleResultSet rs = (OracleResultSet)
s.executeQuery("select * from blobs where id='video2.avi' for update ");
String index = "";
while(rs.next())
index = rs.getString(1);
index+="1";
System.out.println("llego hasta aki");
// el error esta en esta linea de abajo ...
OrdVideo vidObj = (OrdVideo) rs.getCustomDatum(2, OrdVideo.getFactory());
//rs.getBfile(3);///
FileInputStream fStream = new FileInputStream("/home/jova/movie.avi");
vidObj.loadDataFromInputStream(fStream);
vidObj.getDataInFile("/home/jova/movie.avi");
fStream.close();
System.out.println(" getContentLength output : " +
vidObj.getContentLength());
OraclePreparedStatement stmt1 =
(OraclePreparedStatement) con.prepareCall("update blob_col set image = ? where id = " + index);
stmt1.setCustomDatum(1,vidObj);
stmt1.execute();
stmt1.close() ;
index+="1";
System.out.println("OK");
catch(Exception e) {
System.out.println("exception raised " + e);
System.out.println("load data from stream unsuccessful");
}

I'm development a application in Java with oracle, to manage media files. When I try to insert into oracle , I have this problem "oracle.sql.BLOB cannot be cast to oracle.sql.STRUCT" , and I don't know what that can be ..
This is my code , please help with that.. If you have a smaple code of java and oracle to insert media , that will be a great help ..
public void loadDataFromStream(OracleConnection con)
try {
Statement s = con.createStatement();
OracleResultSet rs = (OracleResultSet)
s.executeQuery("select * from blobs where id='video2.avi' for update ");
String index = "";
while(rs.next())
index = rs.getString(1);
index+="1";
System.out.println("llego hasta aki");
// el error esta en esta linea de abajo ...
OrdVideo vidObj = (OrdVideo) rs.getCustomDatum(2, OrdVideo.getFactory());
//rs.getBfile(3);///
FileInputStream fStream = new FileInputStream("/home/jova/movie.avi");
vidObj.loadDataFromInputStream(fStream);
vidObj.getDataInFile("/home/jova/movie.avi");
fStream.close();
System.out.println(" getContentLength output : " +
vidObj.getContentLength());
OraclePreparedStatement stmt1 =
(OraclePreparedStatement) con.prepareCall("update blob_col set image = ? where id = " + index);
stmt1.setCustomDatum(1,vidObj);
stmt1.execute();
stmt1.close() ;
index+="1";
System.out.println("OK");
catch(Exception e) {
System.out.println("exception raised " + e);
System.out.println("load data from stream unsuccessful");
}

Oracle 8i CORBA and Visibroker

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