Report from different connection pools

Hi All
My requirement is as below.
When USER1 logs in and builds a report from a subject area then the data is fetched from connection_pool1 and when user 2 logs in and builds the same report then data is fetched from connection_pool2.
The data are in identical table structures in both connection pools but for user2 there is a restriction on the volume of data hence can this dynamic feature be implemented? and How.
thanks
swastik

We cannot do this dynamically,We need to change this manually
Connection Pool ---- Permissions
Mark if helps,
Thanks,

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Problem in getting the database connection from a connection pool

Hai All,
I am facing a problem in getting the database connection from a connection pool created on weblogic server 8.1.
I am using the Oracle database 8.1.7.
I have configured my connection pool, datasource and JNDI in weblogic.
In my java program i have the following code to retrieve the connection.
import java.sql.*;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
class jdbcshp1 {
    public static void main(String[] args) {
     Connection connection = null;
     try {
           Hashtable ht = new Hashtable();
           ht.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory"); // Wanna get rid of this.
           ht.put(Context.PROVIDER_URL,"t3://localhost:7001"); // wanna get rid of this.
           // Get a context for the JNDI look up
           Context ctx = new InitialContext(ht);
        javax.sql.DataSource ds = (javax.sql.DataSource) ctx.lookup ("myjndi1");
          //Create a connection object
          connection = ds.getConnection();
     The above code is working fine but, the two ht.put statements are creating problem.
The problem is, after converting the application into WAR file it can be deployed
on any machine or different port on same machine. My application fails if its deployed on
weglogicserver which is at different port.
Is there any way that i can get rid of those ht.put statements or any other way to solve the problem.
any help is appreciated.
Thanks in advance
Pooja.

Hai All,
Firstly, thanks for ur reply.
Even i have seen some code which uses context constructor with out any parameter and works fine.
i dont understand why its not working for my code.
When i remove those ht.put code and use context constructor with out any parameter, it giving an error.
Context ctx = new InitialContext();
javax.sql.DataSource ds = (javax.sql.DataSource) ctx.lookup ("ocjndi");
connection = ds.getConnection();The error is as follows:
javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
the above error is forcing me to include those code but if the port number is changed the code will not work. Plz let meknow if some setting have to be made.
I appreciate all ur valuable help.
Thanks once again.
Pooja.

Possible to detect if a connection was fetched from the connection pool?

Is there any way to differentiate between newly opened connections and connections that came from the connection pool? It would have to work without requiring a round trip to the server because I'd only use it to optimize away a procedure call that I now have to do for every connection that is opened.
If the answer is different for the classic provider and the fully managed one, please provide both.

@Op. What you are trying to do can't be done.

Physical Tables from multiple connection pools

Hi all,
we have in our RPD file two connection pools (let's say A and B), each connecting to a different source DBs.
Thus, each physical table resides either in source DB A or B (xor).
The specified connections work in Admin tool, and also direct database requests work in OBIEE 11G if we explicitly
provide the correct connection pool. The connection pools are specified in order A,B in the Admin tool.
However, using OBIEE answers always results in following error message if data from the connection pool B
is to be queried:
Error Codes: OPR4ONWY:U9IM8TAC:OI2DL65P
State: HY000. Code: 10058. [NQODBC] [SQL_STATE: HY000]
[nQSError: 10058] A general error has occurred.
[nQSError: 43113] Message returned from OBIS.
[nQSError: 17001] Oracle Error code: 942, message: ORA-00942: table or view does not exist at OCI call OCIStmtExecute.
[nQSError: 17010] SQL statement preparation failed. (HY000)
If we exchange the order of connection pools to B,A in Admin tool, we get the same error if we query
data from connection pool A.
It seems that each connection pool needs to be able to access all physical tables. Is that correct?
Thanks, Thomas
Edited by: user13376481 on Mar 4, 2013 3:08 AM

Hi Thomas.
I have the same escenario...
you tried the solution? worked?
Thanks.
Hamilton T

Using EJB from another connection pool in WLPI

Hi All,
I've deployed an entity bean (CMP) which used the connection pool other than the
one used by WLPI. When I execute the business operation I've defined for this
bean, the following exception is encountered:
"Couldn't get connection: java.sql.SQLException: Connection has already been created
in this tx context for pool named wlpiPool. Illegal attempt to create connection
from another pool: oraclePool"
Is there any other alternative for me to use the entity bean in WLPI?
Thanks,
Fred

Instead of using mulitiple connection pool,we are using single connection pool.
Our one application, accessing remote db also, for that we are using simple jdbc
connection. No pool.
We also tried OracleXAdriver. In that case, at the time of startup we are getting
weird error.
Thanks
JIgnesh Patel
"Fred" <[email protected]> wrote:
>
I simply turned all my CMP to BMP and get the connection from another
connection
pool. But that was not what I want. Is there any method that allows a
CMP to use
connection pool other than the wlpiPool pool in WLPI?
Thanks
"jignesh" <[email protected]> wrote:
Hi Fred,
We are also getting same error. How did you resolve this error ?
I'd appreciate,if you can post resolution of this error.
Thanks
Jignesh Patel
"Fred" <[email protected]> wrote:
Hi All,
I've deployed an entity bean (CMP) which used the connection pool other
than the
one used by WLPI. When I execute the business operation I've defined
for this
bean, the following exception is encountered:
"Couldn't get connection: java.sql.SQLException: Connection has already
been created
in this tx context for pool named wlpiPool. Illegal attempt to create
connection
from another pool: oraclePool"
Is there any other alternative for me to use the entity bean in WLPI?
Thanks,
Fred

Compare Merge Model problems with models from different connections

Hi all,
I've experienced a problem while using the compare/merge model funcion under tools.
Just to put in place:
I've 4 model, one for each enviroment that I have: DEV, INT, TEST, PROD(*each model imported from different connections*). Because I haven't found any reliable way to keep them sincronyzed, using DLL deltas. Is there a way to do that?
Anyway, regarding the main subject problem. Whem I try to sync for example, from PROD, to TEST, using compare/merge model function under tools, the process find the differences. When I selecte those that I want, and click on merge, the destination model TEST, get the selected objects merged into.
But now, the model Schema, when I select sincronyze model with data dictionary to get de DLL delta, things get crazy, and the merged objects doesn't get detected to be created.
If it's help, I think that the is with the associated import connection than the merged objects have. They have the PROD connection name, instead of the TEST connection name. Also when I try to syncronize the relational model againts de data dictionary(database), datamodeler ask me wich connection to use, PROD or TEST. When, before, merging, model, data modeler did not ask me anything.
Why is data modeler doing this?
What I have seen is when you import in a model things from different connections/models, when you try to sincronyze agains a connection, all objects that are not from the selected connection doesn't get compared.
Is there a bug or a problem?
How can I can keep a schema in different enviroments, sync? What are the step that I shoulf follow?
Thanks in advance.
Edited by: morfeo8marc on 14-mar-2012 11:17

I shall try to explain what is happening here.
When you import objects from TEST data dictionary, their source information (see Summary info in Properties dialog) will refer to TEST.
The relational model for TEST will contain source information (see Summary info in Properties dialog) for the connection to TEST.
Similarly, imported objects from PROD will refer to the PROD data dictionary, and the PROD relational model will hold connection details for PROD.
If you merge PROD objects into the TEST model, they will retain their source information (i.e. referring to PROD).
The TEST model will be updated to include connection details to PROD.
When you synchronize a model, if it only has one source connection, it uses that.
If it has more than one, it will prompt you to decide to which data dictionary it should synchronize.
In your case, for the TEST data dictionary, it will synchronize all objects that have source information for TEST (i.e. those imported from TEST).
It will also compare any new objects (i.e. those not imported from a data dictionary).
It will not compare objects that were imported from a different data dictionary (e.g. PROD).
This supports the scenario where a model consists of objects imported from more than one data dictionary, and where the data dictionaries are maintained separately.
We may need to review the above strategy in light of your experience and development process.
In the meantime, may I suggest that from your updated TEST model, you Import from Data Dictionary using the TEST connection.
The resulting Compare Models dialog should show all objects (i.e. those from TEST and PROD).
You may need to set the Swap Models option to generate DDL with which to update your TEST data dictionary.
Thank you for raising this matter.
Regards,
Tony Rose

Different connection pool for a report

Hi experts,
For one my reports using 'CLOBS' like explained (http://oraclebizint.wordpress.com/2007/11/12/oracle-bi-ee-101332-working-with-clob-fields/) I need to disable parallel processing because it's not supported.
NO_PARALLEL and NO_INDEX_PARALLEL hints at the query level couldn't disable the parallelism.the optimizer still use it.
I thought about having a new connection pool that contains 'before query' and 'after query' statements that will disable the parallelism.This will take me a lot of time to rebuild the whole Presentation and Business layers to point to a new physical tables.
Any one has an idea about how I can use another connection pool for a specific report?
Regards

I have the problem. My issue is that I need to have a webservice use the 2 database connection pools I have created. Originally the pools were Non-XA. When I change them to XA I cannot get the JMS JDBC Store to work.
java.lang.Exception: WebLogic Pool Driver doesn't support XA driver, Please change your config to use a Non-XA driver
However, part of what you wrote below I don't understand. You said you configured a brand new JMS JDBC Store and was able to use an XA Connection Pool? I tried to delete my existing one and create it anew, but was not able to use an XA pool.
Is there any solution around this? I need to have an XA Pool for a webservice but non-XA for my JMS Store.
"After much digging I found documentation that you cannot configure an XA JDBC Connection Pool for use with a JMS JDBC Store: http://edocs.bea.com/wls/docs81/ConsoleHelp/jms_config.html#1128929
The only thing is that if I configure a brand new JMS JDBC Store and make it use the XA JDBC Connection Pool (instead of just selecting the new MySQLXAConnPool from the list that includes the non XA pool) it works without an error."

Connect to two different connection pool

You should post to jdbc group.
Please post more detail about the exception.
"ahmad" <[email protected]> wrote in message
news:40d83847$1@mktnews1...
Hi, everybody,
I have two entity bean, associated with two different datasource andconnection pool, how can I look up these two entity bean, and get them from
one session bean.
>
now, when I looking up and get them, an exception throws :
Illegal attemp to connect two another connection pool.
regards
Ahmad R. Seddighi

How to get Driver and url names from a connection pool

Hi,
How to get the DriverName and URL from an existing pool, If I know the name of
connection pool ? Is it possible to know the name of related pool , if I know
the name of datasource?
Thx
Manish

hi
there are 2 ways:
url must be: jdbc:weblogic:pool[:connectionPoolID]
or
jdbc:weblogic:jts[:connectionPoolID] (if you want to use jts with your JDBC connection.)
see http://e-docs.bea.com/wls/docs60//javadocs/weblogic/jdbc/pool/Driver.html
However, I think it is safer to configure and use DataSource to get connection.
Nicolas
"kumar" <[email protected]> wrote:
>
Hi,
How to get the DriverName and URL from an existing pool, If I know the name
of
connection pool ? Is it possible to know the name of related pool , if I
know
the name of datasource?
Thx
Manish

Could not retrieve connection info from torque connection pool

Hi,
I am using Apache Torque for making connection with my Oracle 9i server.
My Torque.properties file configuration is as follows:-
torque.dsfactory.cpm.factory=org.apache.torque.dsfactory.SharedPoolDataSourceFactory
torque.dsfactory.cpm.pool.maxActive=10
torque.dsfactory.cpm.pool.maxWait=60
torque.dsfactory.cpm.pool.testOnBorrow=true
torque.dsfactory.cpm.pool.validationQuery=SELECT 1 from dual
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----Anurag----

Hi,
I have my complete Torque.properties file, just for the reference, I have pasted few lines from my torque.properties file. Secondly, I am using the JDBC Driver for my oracle connection & its working fine. The problem is when my application tries to access connection from connection pool, & if it finds no connection in the pool it gives error. After increasing the size of the connection in the pool, still I am getting the same error. Do you have some idea regarding this.

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Questions like yours are best asked over at the webOS Developer's Forum. The Palm Support Community here is geared to answering end-user questions about devices, not programming information.
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WyreNut
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Ajax Dynamic Conntent -- pull report from different page

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Multiple connection pools

Hi,
I have a requirement to build a report. The columns are scatterred in different connection pools. Copying the tables from different databases gives me error of OCI.
What is the best way of doing this, i do not have the connection entries like username and pwd for different connection pools so i cannot import from the database.
Is there some easy way of doing this.
Help will be appreciated
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hi Amit,
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Report from different connection pools

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