JDBC 4.0, setClientInfo clarification

All:
The javadoc for setClientInfo(String name, String value) at [Connection.setClientInfo(String name,String value)|http://download.oracle.com/javase/6/docs/api/java/sql/Connection.html#setClientInfo(java.lang.String,%20java.lang.String)] specifies that "... The driver shall generate a warning if the client info name specified is not recognized by the driver. ..."
However, javadoc for setClientInfo(Properties properties) at [Connection.setClientInfo(Properties)|http://download.oracle.com/javase/6/docs/api/java/sql/Connection.html#setClientInfo(java.util.Properties)] is "quiet" on this topic -- what to do if the names are not recognized.
I am wondering if setClientInfo(String name, String value)'s behavior for unrecognized names can be extended to setClientInfo(Properties). It will be great if the specification writers or JDBC driver developers in this forum can chime in on this topic.
With regards,
mp

They both throw SQLClientInfoException so the question would seem moot to me.
It will be great if the specification writersDoubt that is going to happen.

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JDBC 4 setClientInfo()

In looking at the [JDBC 4 api docs|http://java.sun.com/javase/6/docs/api/java/sql/Connection.html#setClientInfo(java.lang.String,%20java.lang.String)], there is a method called setClientInfo(), which looks like it should allow us to set the client_identifier and other context variables. However, using the 11g drivers, I can't find any suitable property names - everything I try throws an exception. Properties I have tried include:
ClientUser
client_user
ClientInfo
client_info
ClientIdentifier
client_identifier
Further, when I query DatabaseMetaData.getClientInfoProperties, I get no results.
Has anyone successfully used this method yet? I haven't been able to find anything on Oracle's implementation of this method, and was wondering if anyone else has found any documentation from Oracle on this method and whether it should work, and if so, what property names are available?

Client info properties supported by a JDBC driver may be obtained using the getClientInfoProperties() method.
Some standard client info properties that a JDBC driver may support are:
ApplicationName     The name of the application that is using the connection.
ClientUser     The name of the user.
ClientHostname     The hostname on which the application is running.
Further, when I query DatabaseMetaData.getClientInfoProperties, I get no results.
Is the ojdbc6.jar in the classpath?
Client info properties are not listed as supported by Oracle database.
http://download.oracle.com/docs/cd/B28359_01/java.111/b31224/jdbcvers.htm#BCFFIFAD
DB2 9 database driver supports client info properties.

Clarification of doubt in File-XI-JDBC scenario

I had one doubt in this scenario.can anybody Plz clarify in this scenario File-XI-JDBC.
1)where we have to specify the table name in the receiver JDBC comm channel to insert the data into sql database from file.My doubt is,there are so many tables in existence.in the comm channel i am not mentioning the table name any where.
currently i am using SQL server and created one table name "EMP" with n columns.
2)Is i need to configure this sql driver to the J2ee server or by default this will be shipped with XI?
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Thanks in Advance
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Hi Sridhar
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<root>
<StatementName1>
<dbTableName action=UPDATE | UPDATE_INSERT>
<table>realDbTableName</table>
<access>
<col1>val1</col1>
<col2>val2new</col2>
</access>
<key1>
<col2>val2old</col2>
<col4>val4</col4>
</key1>
<key2>
<col2>val2old2</col2>
</key2>
</dbTableName>
</StatementName1>
Please refer the link for more detail
http://help.sap.com/saphelp_erp2004/helpdata/en/2e/96fd3f2d14e869e10000000a155106/content.htm
2) Basically there is an driver file which has to be deployed to the server. But it may be there by default.
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Regards,
Mitesh.

New to JAVA - ODBC/JDBC - clarification

Hi,
I am using Window XP. I am in my initial stages of learning JAVA.
I am using one of the books to learn the language. I wrote to the following code to interact with the database - "websites.mdb" which is in a different location than java.
import java.sql.*;
public class MakeTheConnection
public static void main (String[] args)
try
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String sourceURL = new String ("jdbc:odbc:websites");
Connection DatabaseConnection = DriverManager.getConnection(sourceURL);
catch (ClassNotFoundException cnfe)
System.out.println(cnfe);
catch (SQLException sqle)
System.out.println(sqle);
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java.sql.SQLException: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
I also tried creating a DSN which I tried using it here in the sourceURL but still in vain, i got the same error. I would really appreciate if somebody could help me in providing pointer or information regarding to solve this problem and be able to interact with databases. I use MS access.
Thanks in advance.
PK

Hi,
I created the file DSN through Control panel - > ODBC called "Test" and I used that in the following manner:
try
          Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
          String sourceURL = new String ("jdbc:odbc:Test");
          Connection DatabaseConnection = DriverManager.getConnection(sourceURL);
I hope that is right. I am trying to execute using these code. I am getting the following error, I am not sure where the problem is.
C:\jdk1.5.0\bin>java MakeTheConnection
java.sql.SQLException: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
Please do let me know.
Regards,
PK

Need Clarification on JDBC--RFC Sync

Hi All,
in JDBC----RFC Sync scenario, do we use BPM to get the response from the RFC??
Why because JDBC is not having the Sync nature.
Regards
Vamsi

Hi,
its not necessary to use BPM to get response with out BPM also we can get the response. Better try to avoid BPM because of the performance issue.
Please refer this link
http://help.sap.com/saphelp_nw70/helpdata/en/b0/676b3c255b1475e10000000a114084/content.htm
Thanks
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Edited by: Khimavath Vikranth on Jun 4, 2008 11:31 AM
Edited by: Khimavath Vikranth on Jun 4, 2008 11:39 AM

ODBC - JDBC - Clarification

Hi,
I am using Window XP. I am in my initial stages of learning JAVA.
I am using one of the books to learn the language. I wrote to the following code to interact with the database - "websites.mdb" which is in a different location than java.
import java.sql.*;
public class MakeTheConnection
     public static void main (String[] args)
     try
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          Connection DatabaseConnection = DriverManager.getConnection(sourceURL);
     catch (ClassNotFoundException cnfe)
          System.out.println(cnfe);
     catch (SQLException sqle)
          System.out.println(sqle);
When I run the above code I am geting the following error:
java.sql.SQLException: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
I also tried creating a DSN which I tried using it here in the sourceURL but still in vain, i got the same error. I would really appreciate if somebody could help me in providing pointer or information regarding to solve this problem and be able to interact with databases. I use MS access.
Thanks in advance.
PK

The use of a DSN is corrrect. You have to create User or System-DSN with name "websites" (as stated in your JDBC sourceURL) and that DSN connects to the MDB database you're trying to access. Then your program should just work fine.
For the DSN you have to use the MS-Access driver (afaik language is not important). Then your program should just work fine.

Urgent Clarification - Microsoft SQL Server JDBC Driver Problem

Hi,
Can somebody tell me how to create a connection Pool in weblogic 7 using Microsoft
SQL Server Driver for JDBC.(should be XADataSource).
I mean the pool should be created using com.microsoft.jdbcx.sqlserver.SQLServerDataSource
class.
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the connection pool.
Thanks in advance,
Rahul.

<JDBCConnectionPool
DriverName="com.microsoft.jdbcx.sqlserver.SQLServerDataSource"
Name="SQL2000JDBC"
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Try this is your config.xml and make sure you have mssqlsriver first thing in classpath.
Thanks,
Mitesh
Rahul wrote:
Hi,
Can somebody tell me how to create a connection Pool in weblogic 7 using Microsoft
SQL Server Driver for JDBC.(should be XADataSource).
I mean the pool should be created using com.microsoft.jdbcx.sqlserver.SQLServerDataSource
class.
The error message i am getting is "Unknown source" during providing targets for
the connection pool.
Thanks in advance,
Rahul.

Clarification needed on JDBC Connection Pool in Clustered enviornment

Hi All,
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          Nalika


See comments inline...
          Nalika wrote:
          > Hi All,
          >
          > Although I went through the bea online documentation , its not clear how
          > JDBC connection pool works in clustered environment.
          > If anyone can please answer following questions, it would be a great help.
          >
          > 1) Do I need to create identical connection pools (with identical ACLs) on
          > each WebLogic Server in the cluster ?
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          > 2) Online documentation says " If you create an identical JDBC DataSource in
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          > use different connection pools, the cluster can support load balancing for
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          components in each server will "prefer" to use their local DataSource (all other
          things being equal) and since other clustering technology (or things like
          hardware load balancers) are spreading the load across the servers, you will
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          > 3) What's the use of "JDBC MultiPools " ? Is it same as "JDBC metapool "
          Yes, these are one and the same.
          Hope this helps,
          Robert

Need clarification abt JDBC driver

Hi All,
I installed Oracle 10g and now accessing the DB using Java.
I am using this below code :-
Class.forName ("oracle.jdbc.driver.OracleDriver");
Connection con = DriverManager.getConnection
("jdbc:oracle:thin:@localhost:1521:orcl","scott","tiger");
Using classes12.jar (type 4 driver)
I am getting this error :-
Error is: java.sql.SQLException: Listener refused the connection with the following error:
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The Connection descriptor used by the client was:
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Please get back with solution
Regards,
Bhargava.

Bhargava,
The JDBC Forum is more appropriate for your post.
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File "classes12.jar" is for JDK 1.2
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select INSTANCE_NAME from V$INSTANCEI also suggest perusing the JDBC Developer's Guide and Reference which is part of the Oracle documentation.
All of the Oracle documentation can be accessed from:
http://www.oracle.com/technology/documentation/index.html
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Avi.
Message was edited by:
Avi Abrami

I need a clarification : Can I use EJBs instead of helper classes for better performance and less network traffic?

My application was designed based on MVC Architecture. But I made some changes to HMV base on my requirements. Servlet invoke helper classes, helper class uses EJBs to communicate with the database. Jsps also uses EJBs to backtrack the results.
I have two EJBs(Stateless), one Servlet, nearly 70 helperclasses, and nearly 800 jsps. Servlet acts as Controler and all database transactions done through EJBs only. Helper classes are having business logic. Based on the request relevant helper classed is invoked by the Servlet, and all database transactions are done through EJBs. Session scope is 'Page' only.
Now I am planning to use EJBs(for business logic) instead on Helper Classes. But before going to do that I need some clarification regarding Network traffic and for better usage of Container resources.
Please suggest me which method (is Helper classes or Using EJBs) is perferable
1) to get better performance and.
2) for less network traffic
3) for better container resource utilization
I thought if I use EJBs, then the network traffic will increase. Because every time it make a remote call to EJBs.
Please give detailed explanation.
thank you,
sudheer

<i>Please suggest me which method (is Helper classes or Using EJBs) is perferable :
1) to get better performance</i>
EJB's have quite a lot of overhead associated with them to support transactions and remoteability. A non-EJB helper class will almost always outperform an EJB. Often considerably. If you plan on making your 70 helper classes EJB's you should expect to see a dramatic decrease in maximum throughput.
<i>2) for less network traffic</i>
There should be no difference. Both architectures will probably make the exact same JDBC calls from the RDBMS's perspective. And since the EJB's and JSP's are co-located there won't be any other additional overhead there either. (You are co-locating your JSP's and EJB's, aren't you?)
<i>3) for better container resource utilization</i>
Again, the EJB version will consume a lot more container resources.

Multibyte character support in Jdbc Driver

Hi,
I want to use multibyte characters in my Application and to store it in my database.
If my database provider does not support a Multibyte data type, Can my
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Thanks in Advance,
Jay

Hi,
I want to use multibyte characters in my Application
and to store it in my database.
If my database provider does not support a Multibyte
data type, Can my
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For a column of type ISO88591 which is of single byte
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Running Web Layout Of JDBC Query in Oracle Report Builder 11g.

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javax.servlet.jsp.JspException: REP-4100: An attempt to execute data source failed.
JDBCPDS-62008:A SQL error occurred: {0}.
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     at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:27)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
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For the more clarification, I have used JDBC Query as Data source type and Database connected via ODBC Driver in System DSN. The Driver selected from the drop-downs are jdbc-odbc.
Kindly explain the mistake I m doing.

Loading csv files from JDBC

What is the best way to load a csv file using JDBC link? Right now I basically read a line and insert it, batching it doesn't seem to speed it up either.
Thanks
Brian Timothy
null

Hai !
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JDBC Sender adapter - Oracle - Stored Procedure - Error

Hello,
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BPM getting data from multiple JDBC databases

Hi - a 'high level' question...
I have a scenario where the first step in my bpm is a receive step which will be a JDBC send adapter/comm channel to a particular database. The rows returned will have a key field called "ID". For each of these rows, I need to go to a completely different JDBC database to gather more data based on this key "ID".
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HI,
<i>For each of these rows, I need to go to a completely different JDBC database to gather more data based on this key "ID"</i>
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/people/bhavesh.kantilal/blog/2006/07/03/jdbc-receiver-adapter--synchronous-select-150-step-by-step
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Moorthy

JDBC 4.0, setClientInfo clarification

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