Joins across multiple databases using jdbc

I have two databases, Access and Oracle. I can read and write to them, but now I need to execute an outer join. How would I construct the join in Java? I'd also like to store the result in Access. Thanks in advance.

Either you can link the Oracle DB into Access (by using File/Get External Data/Link Tables)
or you have to simulate the join in Java by doing two separate queries and looping through the results.

Similar Messages

Outer joins across multiple databases

I'm trying to join three tables: 2 from data warehouse and 1 from Siebel database in OBIEE. I create the physical and logical joins (no errors or warnings). The model looks like this: Account Address (table 1) -> Account (table 2) -> Siebel Customer Data (table 3)
I create two queries in Answers:
(1) Account.Number and Siebel.Address (the query works)
(2) Account Address.Zip, Account.Number, and Siebel.Address (the query gets the following error):
State: HY000. Code: 10058. [NQODBC] [SQL_STATE: HY000] [nQSError: 10058] A general error has occurred. [nQSError: 42019] Join condition, D901.c3 <> 0, contains predicates that are currently not supported for outer joins across multiple databases. (HY000)
Can someone help me understand why the join between the two databases works for the first query but when I add a second table it fails?
thanks...

Either you can link the Oracle DB into Access (by using File/Get External Data/Link Tables)
or you have to simulate the join in Java by doing two separate queries and looping through the results.

Inserting Multiple Images into oracle database using JDBC

I wanted to insert multiple images into database using JDBC by reading it from the file... and i am passing photos.txt(my text file) as an input parameter... I have inserted all the values into the database except for the image part... this is my content of photos.txt file and i have copied all the images into the folder
*" C:\\photos "*
*1,in1.jpg,108,19,in-n-out*
*2,in2.jpg,187,21,in-n-out*
*3,in3.jpg,308,41,in-n-out*
*4,in4.jpg,477,52,in-n-out*
*5,in5.jpg,530,50,in-n-out*
and i want to store in1.jpg,in2.jpg,in3.jpg,in4.jpg,in5.jpg into the oracle databse using JDBC.... i have tried a lot using BLOB column.... and i have created my table as
CREATE TABLE PHOTO(
ID NUMBER NOT NULL PRIMARY KEY ,
Name BLOB,
X DOUBLE PRECISION,
Y DOUBLE PRECISION,
Tags VARCHAR2(40)
try { // for restaurant System.out.println();System.out.println();System.out.println(); System.out.print(" Creating Statement for Photo...\n"); stmt2 = con.createStatement (); stmt2.executeUpdate("delete from PHOTO"); stmt2.executeUpdate("commit"); PreparedStatement stmt3 = con.prepareStatement ("INSERT INTO PHOTO VALUES (?, ?, ?, ?, ?)"); System.out.print(" Create FileReader Object for file: " + inputFileName1 + "...\n"); FileReader inputFileReader2 = new FileReader(inputFileName1); System.out.print(" Create BufferedReader Object for FileReader Object...\n"); BufferedReader inputStream2 = new BufferedReader(inputFileReader2); String inLine2 = null; String[] tokens; // String[] imageFilenames = {"c:\\photos\\in1.jpg","c:\\photos\\in2.jpg","c:\\photos\\in3.jpg","c:\\photos\\in4.jpg","c:\\photos\\in5.jpg", // "c:\\photos\\in6.jpg","c:\\photos\\in7.jpg","c:\\photos\\in8.jpg","c:\\photos\\in9.jpg","c:\\photos\\in10.jpg","c:\\photos\\arb1.jpg","c:\\photos\\arb2.jpg", // "c:\\photos\\arb3.jpg","c:\\photos\\arb4.jpg","c:\\photos\\arb5.jpg","c:\\photos\\den1.jpg","c:\\photos\\den2.jpg","c:\\photos\\den3.jpg", // "c:\\photos\\den4.jpg","c:\\photos\\den5.jpg","c:\\photos\\hop1.jpg","c:\\photos\\hop2.jpg","c:\\photos\\hop3.jpg","c:\\photos\\hop4.jpg","c:\\photos\\hop5.jpg"}; File file = new File("C:\\photos\\in1.jpg"); \\ ( Just for example ) FileInputStream fs = new FileInputStream(file); while ((inLine2 = inputStream2.readLine()) != null) { tokens= inLine2.split(","); st2 = new StringTokenizer(inLine2, DELIM); stmt3.setString(1, tokens[0]); stmt3.setBinaryStream(2, fs, (int)(file.length())); stmt3.setString(3, tokens[2]); stmt3.setString(4, tokens[3]); stmt3.setString(5, tokens[4]); stmt3.execute(); //execute the prepared statement stmt3.clearParameters();
As i am able to enter one image file by above code in1.jpg in to the oracle database.... but i am not able to insert all the image file in to the database.....do tell me what should i do.... and can you give me the example on the basis of the above code of mine...
do reply as soon as possible..

jwenting wrote:
that depends. Putting the images in BLOBs prevents the file locations stored in the database from getting out of synch with the filesystem when sysadmins decide to reorganise directory structures or "archive" "old" files that noone uses anyway.True, but it really comes down to a business decision (cost-benefit analysis). If you have the bucks, the expertise, and the time, go with the Blobs, otherwise go with the flat files.

How to execute sql scripts from Powershell across multiple databases

Re: How to execute sql scripts from Powershell across multiple databases
I have an tsql script that I want to run across a list of databases. How is the best way to do this in Powershell? Thanks.

My example below, using just the SMO and not breaking up the batches, the ExecuteWithResults give the following error when the .sql file contains a GO. My script files are as simple as a DECLARE and then a GO.
WARNING: SQL Script Failed
The object of type "Microsoft.PowerShell.Commands.Internal.Format.FormatStartData" is not valid or not in the correct sequence. This is likely caused by a user-specified "format-list" comm
and which is conflicting with the default formatting.
+ CategoryInfo : InvalidData: (:) [out-lineoutput], InvalidOperationException
+ FullyQualifiedErrorId : ConsoleLineOutputOutOfSequencePacket,Microsoft.PowerShell.Commands.OutLineOutputCommand
Also, when executing from the ISE, is there a way to force the ISE to release the files. I am having to close the ISE and reopen my script every time I want to make a testing change to the .sql file.
[reflection.assembly]::LoadWithPartialName("Microsoft.SqlServer.Smo")
$scriptspath = "C:\temp\psExecuteSQLScripts\scripts"
$SQLServer = "fidevc10"
$SQLDB = "Bank03"
# Create SMO Server Object
$Server = New-Object ('Microsoft.SQLServer.Management.Smo.Server') $SQLServer
# Get SMO DB Object
$db = $Server.Databases[$SQLDB]
# Load All SQL Scripts in Directory
$scripts = Get-ChildItem -Path (Join-Path $scriptspath "*") -Include "*.sql" -Recurse
# Loop through each script and execute
foreach ($SQLScript in $scripts)
$fullpath = $SQLScript.FullName
# Read the Script File into Powershell Memory
$reader = New-Object System.IO.StreamReader($fullpath)
$script = $reader.ReadToEnd()
# Execute SQL
Write-Host "Executing $SQLScript on $SQLDB...."
try
$ds = $db.ExecuteWithResults($script)
Foreach ($t in $ds.Tables)
Foreach ($r in $t.Rows)
Foreach ($c in $t.Columns)
Write-Host $c.ColumnName "=" $r.Item($c)
Write-Host "Complete"
catch [Exception]
Write-Warning "SQL Script Failed"
echo $_.Exception|format-list -force
Write-Host " " -BackgroundColor DarkCyan

NCHAR issue with oracle database using JDBC adapter

Hi,
We have a requirement to develop an XI interface from FTP server(File adapter) to oracle database using JDBC adapter. In the oracle database table few fields are of type NCHAR/NVARCHAR. when we try to insert the character(A,B,c..) values into oracle table fields of type NCHAR/NVARCHAR, we are getting the following error message in the JDBC adapter audit log. IF we pass the numeric value to the same field, then we are able to insert the records successfully.
Unable to execute statement for table or stored procedure. 'IPCSDD_DOWNLOAD_PROCESS' (Structure 'StatementName1') due to java.sql.SQLException: ORA-00904: "P": invalid identifier
2010-10-19 22:29:59 Error JDBC message processing failed; reason Error processing request in sax parser: Error when executing statement for table/stored proc. 'IPCSDD_DOWNLOAD_PROCESS' (structure 'StatementName1'): java.sql.SQLException: ORA-00904: "P": invalid identifier
2010-10-19 22:29:59 Error MP: Exception caught with cause com.sap.aii.af.ra.ms.api.RecoverableException: Error processing request in sax parser: Error when executing statement for table/stored proc. 'IPCSDD_DOWNLOAD_PROCESS' (structure 'StatementName1'): java.sql.SQLException: ORA-00904: "P": invalid identifier
Please find the system information below.
Oracle version- 10.2.4
XI version - 3.0/ service pack 19
JDBC driver- oracle.jdbc.driver.OracleDriver
Please suggest.
Thanks,
Venkata
Edited by: Venkata Narayana Eepuri on Oct 21, 2010 12:10 AM

Dear Venkata Narayana,
Concerning the error, kindly go through the following note :
731 - Collective note: ORA-00904
follow the recommendations mentioned in that and please check if that helps.
Best Regards
Nishwanth

Connection to multiple databases using a single EJB

How can I connect to multiple Databases (using @PersistenceContext) using an EJB?
Did I need to connect various Entity Managers corresponding to the each database and simply send my Queries?
I am using Glassfish Application Server
Netbeans IDE
Java Derby Database
Oracle Database
Java Persistence API
Thanks in Advance

Yes, you need a persistence context and thus entity manager per database. Depending on what you want to achieve you may also need to go to the next level in your skill set and learn all about distributed transactions.

How to Connect Microsoft SQL 2000 database using JDBC

Hi all..
I want to connect Microsoft SQL 2000 database using JDBC. I want from initial steps also. (about JDBC driver & its installation)
Thankz

Just checkout the SQL Server JDBC Driver Documentation at the manfacturer's site: http://msdn2.microsoft.com/en-us/data/aa937724.aspx

How to eliminate inserting Duplicate rows into database using JDBC Adapter

File->Xi->JDBC
In above Scenario if the file has two rows their values are identical, then how can we eliminated inserting Duplicate rows into database using JDBC Adapter

Database is a consumer of a SERVICE (SOA!!!!!!).
Database plays a business system role here!!!!
Mapping is part of an ESB service
Adaptor is a technology adapted to ESB framework to support specific protocol.
ESB accomplish ESB duties such as transformation, translation, routing. Routing use a protocol accepted by the consumer. In a JDBC consumer it is JDBC protocol and hence it a JDBC adaptor.
There is clear separation on responsibilities among business system and ESB. ESB do not participate in business decision or try to get into business system data layer.
So who ever are asking people to check duplicate check as part of mapping (an ESB service) may not understand integration practice.
Please use an adaptor module which will execute the duplicate check with business system in a plug and play approach and separate that from ESB service so that people can build integration using AGILE approach.
Thanks

Connecting to DB2 Database using JDBC for select/Insert

Hi,
I am trying to connect to an DB2 Database using JDBC adapter, I have build an UDF for the same.
The UDF will try to query the database in the form of Select and INSERT.I am using the LOOKUP API provided by SAP.When I try to execute the UDF I have received the following error.can any of you provide the solution for the error and also is it that the JDBC adapter has to be situated on Central Adapter engine to execute the API, can the JDBC adapter used for executing the INSERT statement.
Exception during processing the payload.Problem when calling an adapter by using communication channel JDBC_PIDB_Receiver_CC (Party: , Service: XIDB_BSRV, Object ID: 59f2d7694acc3e81840f89b0169d9323) XI AF API call failed. Module exception: (No information available). Cause Exception: (No information available).
com.sap.aii.mapping.lookup.LookupException: Problem when calling an adapter by using communication channel JDBC_PIDB_Receiver_CC (Party: , Service: XIDB_BSRV, Object ID: 59f2d7694acc3e81840f89b0169d9323) XI AF API call failed. Module exception: (No information available). Cause Exception: (No information available).
     at com.sap.aii.ibrun.server.lookup.AdapterProxyLocal.execute(AdapterProxyLocal.java:131)
     at com.sap.aii.ibrun.server.lookup.SystemAccessorInternal.execute(SystemAccessorInternal.java:68)
     at com.sap.aii.ibrun.server.lookup.SystemAccessorHmiServer.process(SystemAccessorHmiServer.java:149)
     at com.sap.aii.ibrun.server.lookup.SystemAccessorHmiServer.process(SystemAccessorHmiServer.java:77)
     at com.sap.aii.utilxi.hmis.server.HmisServiceImpl.invokeMethod(HmisServiceImpl.java:169)
     at com.sap.aii.utilxi.hmis.server.HmisServer.process(HmisServer.java:178)
     at com.sap.aii.utilxi.hmis.web.HmisServletImpl.processRequestByHmiServer(HmisServletImpl.java:296)
     at com.sap.aii.utilxi.hmis.web.HmisServletImpl.processRequestByHmiServer(HmisServletImpl.java:211)
     at com.sap.aii.utilxi.hmis.web.workers.HmisInternalClient.doWork(HmisInternalClient.java:70)
     at com.sap.aii.utilxi.hmis.web.HmisServletImpl.doWork(HmisServletImpl.java:496)
     at com.sap.aii.utilxi.hmis.web.HmisServletImpl.doPost(HmisServletImpl.java:634)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:401)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:386)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:364)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:1039)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:265)
     at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)
     at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:175)
     at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
     at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
     at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:102)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:172)
Root Cause:
com.sap.aii.af.service.api.AFException: XI AF API call failed. Module exception: (No information available). Cause Exception: (No information available).
     at com.sap.aii.af.service.api.AdapterAccess.sendMsg(AdapterAccess.java:214)
     at com.sap.aii.af.service.api.AdapterAccess.execute(AdapterAccess.java:283)
     at com.sap.aii.ibrun.server.lookup.AdapterProxyLocal.execute(AdapterProxyLocal.java:123)
     at com.sap.aii.ibrun.server.lookup.SystemAccessorInternal.execute(SystemAccessorInternal.java:68)
     at com.sap.aii.ibrun.server.lookup.SystemAccessorHmiServer.process(SystemAccessorHmiServer.java:149)
     at com.sap.aii.ibrun.server.lookup.SystemAccessorHmiServer.process(SystemAccessorHmiServer.java:77)
     at com.sap.aii.utilxi.hmis.server.HmisServiceImpl.invokeMethod(HmisServiceImpl.java:169)
     at com.sap.aii.utilxi.hmis.server.HmisServer.process(HmisServer.java:178)
     at com.sap.aii.utilxi.hmis.web.HmisServletImpl.processRequestByHmiServer(HmisServletImpl.java:296)
     at com.sap.aii.utilxi.hmis.web.HmisServletImpl.processRequestByHmiServer(HmisServletImpl.java:211)
     at com.sap.aii.utilxi.hmis.web.workers.HmisInternalClient.doWork(HmisInternalClient.java:70)
     at com.sap.aii.utilxi.hmis.web.HmisServletImpl.doWork(HmisServletImpl.java:496)
     at com.sap.aii.utilxi.hmis.web.HmisServletImpl.doPost(HmisServletImpl.java:634)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:401)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:386)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:364)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:1039)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:265)
     at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)
     at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:175)
     at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
     at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
     at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:102)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:172)
Thanks,
Kiran.

Hi,
have you deployed the JDBC driver for your DB2 database in your XI system........if not, then ask your basis guys to find the weblog to deploy the JDBC driver in XI system and then deploy your DB2 database driver in your JDBC driver in XI system............
then again execute your scenario.
Regards,
Rajeev Gupta

A dimension table outer join across two databases

I have two databases of the same schema but may have different data that I would like to do comparisons on. For this discussion, each has two tables, Dimension and Fact. I created a common dimension which would show dimension data that exists on both databases. However, I want a common dimension which is a full outer join of the two Dimension tables that can be used to view data on the Fact tables on the two databases; this seems to be a little difference than a fact which may having missing value, isn't it? should this outer join occurs at the physical or logical? Can I even do it at physical if the data are from two different source? Any recommendation on what is the best way to do so? Thanks

It depends on how you are defining your BM. Always, BM is for creating joins on folders within BM, in the sense that each folder can contain data from within multiple databases. So, create it in Physical layer and also create new joins for your defined facts dimensions in BM. But remember, cross database joins are not recommended. If both your schemas reside on 2 different oracle databases, you would be better off creating a single view (by creating a dblink between these 2 databases). So, create a single view and include that in the physical layer.
Thanks,
Venkat
http://oraclebizint.wordpress.com

Retrieving Schema details from any database using JDBC.

Hi,
We are in a process of developing a tool to extract the schema level details from any database. Following are the areas where we are facing difficulties. Please give us your valuable comments.
1.How can I get all the depending views of a particular table or vice- versa ?
2.If there is a join view in my database.How can i get the information
for all the join columns?
3. suppose the view in the database is built using some select and omit
Clause. how can I get those conditions using JDBC ?
4.for a viewcolumn , how can I find out, it refers to which column of
a table ?
5.For a table how can I get the information about its unique
constraints and check constraints
6.How can I check , a constraint is enabled or disabled on any table?
I will appreciate your response.

Hi,
We are in a process of developing a tool to extract
ct the schema level details from any database.
Following are the areas where we are facing
difficulties. Please give us your valuable comments.
1.How can I get all the depending views of a
particular table or vice- versa ?No way with JDBC. You need to create something DBMS specific
2.If there is a join view in my database.How can i get
the information for all the join columns?see 1)
3. suppose the view in the database is built using
some select and omit
Clause. how can I get those conditions using JDBC
BC ?see 1)
4.for a viewcolumn , how can I find out, it refers to
which column of a table ?see 1)
5.For a table how can I get the information about its
unique constraints and check constraintsThe DatabaseMetadata object can return that information
6.How can I check , a constraint is enabled or
disabled on any table?I don't think that this is possible with JDBC (not sure
if that information is returned from the DatabaseMetadata
object). You will need to code something DBMS specific
I think there is something with deferred constraints which
can be checked by JDBC but I'm not sure about that either
Thomas

Creating a new access database using JDBC

Hi Forum,
I have a problem in hand. Let me describe the problem:
I want to create an "access database" from java at runtime. "Access database" is file based, so for a database named test, it will have a file test.mdb.
Now, everything's sweet and wonderful, if somebody creates an "empty access database" at the client machine and i then connect to it and create the tables i require.
But the issue is i want to create the database at runtime (the database name and tables are determined at runtime).
Using the JDBC:ODBC bridge driver , i am able to connect to an existing database, but any "create database" statements are not supported.
A last ditch solution would be that i create an empty database using access and copy the file contents in the SQL server database as a a blob object. Then when i want to create a new access database at runtime, i create a file in a particular folder , with an .mdb
extension, copy the file contents from the SQL server (i also have an SQL server connection) BLOB object, and then try to connect to the
.mdb file.
But this approach seems a "quick hack" and can have problems (which i can't see as of now).
Can you suggest a better alternative for the problem.
See the Java Sun forum at this address for a discussion of a similar problem, but sadly with no solution.
http://forum.java.sun.com/thread.jspa?forumID=31&threadID=484731

I have an applet that was previously connected to Oracle 9i. I am faced with connecting to MS Access temporarily for testing purposes.
I have been unable to successfully code connection in java. I have set up the DSN and can access in SQL Worksheet in JDev.
I saw your question regarding creating an access db, and thought you might be so kind as to help me code the connection to access!!!!
Any help you could provide would be greatly appreciated. I have a huge application to finish with alot of sqlj already completed. Connectivity is not my area of expertise!
Any help you could provide would be greatly appreciated!!!
I am not sure if I have to use bridge? Am I progressing in right direction to migrating to SQL Server if need be?

Empty CLOB field value from Oracle database using JDBC Sender

Hi All,
I am selecting a CLOB field from Oracle database table using JDBC Sender adapter and getting error "NullPointerException"
Seen SAP note 1283089 but its not applicable for my support pack PI 7.0 SP 12 and client dont want to upgrdate SP 17 right now.
I tried rpad(1,0)Column_Name funciton in JDBC select query but it selcting blank value for every record even those having some value for this CLOB field so not useful
Could anybody suggest possible way? client dont want to change anything at database side.
Thanks,
Dharamveer

What is the Oracle driver version installed? You might need to install 10.x driver if not already using it.

Connection error to 9i database using JDBC thin driver

When trying to connect to a new 9i database using the JDBC thin driver, I received the following error:
java.sql.SQLException: ORA-00600: internal error code, arguments: [ttcgcshnd-1], [0], [], [], [], [], [], []
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java)
at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java)
at oracle.jdbc.ttc7.Oall7.receive(Oall7.java)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java)
at oracle.jdbc.ttc7.TTC7Protocol.fetch(TTC7Protocol.java)
at oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.java)
at oracle.jdbc.driver.OracleStatement.doExecute(OracleStatement.java)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java)
at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java)
at oracle.jdbc.driver.OracleDatabaseMetaData.getTables(OracleDatabaseMetaData.java)
I have no problem with my code connecting to an Oracle 8 database, just 9i.
I'm trying to debug in Visual Cafe (JDK 1.1.7) and have both the classes111.zip and the nls_charset11.zip in my CLASSPATH.
Any suggestions would be appreciated. Thanks

If you're using 8i 8.1.7.1 or 8i 8.1.7.0 thin JDBC drivers on NT, then you can get them to connect to 9i by applying the 8i 8.1.7.1 Patch available at:
http://technet.oracle.com/software/tech/java/sqlj_jdbc/htdocs/solsoft.html
You might have to register/login first.
Basically, it's just a case of replacing a class already in your classes111.zip or classes12.zip with the class in the patch.
Took me a while to find this, but it worked first time after patching. Hope this helps.

Cannot connect to database using JDBC

Hello!
I am trying to connect to my local database using this script:
import java.sql.*;
public class test{
public static void main (String[] args){
try
    DriverManager.registerDriver (new oracle.jdbc.driver.OracleDriver());
    Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl","scott","tiger");
    Statement StmtPersoane = conn.createStatement();
    ResultSet CrsPersoane =StmtPersoane.executeQuery("select p.* from personal p");
    int jMarca = 0;
    while(CrsPersoane.next()){
    jMarca = CrsPersoane.getInt("marca");
    System.out.println(jMarca);
    CrsPersoane.close();
    StmtPersoane.close();
    conn.close();
catch(SQLException e)
    e.printStackTrace();
}When compiling i am getting this error: Error(7,58): cannot access class oracle.jdbc.driver.OracleDriver; file oracle\jdbc\driver\OracleDriver.class not found
I have set a CLASSPATH enviroment variable with value : D:\oracle10g\product\10.1.0\Db_1\jdbc\lib\ojdbc14.jar
Please provide some hints. Thanks in advace !

Problem solved with the connection, but now i'm getting another error when i am trying to parse an error. Here is the code a little bit modified:
import java.sql.*;
import java.text.*;
import java.text.ParseException;
import java.util.*;
public class test{
public static void main (String[] args){
try
    DriverManager.registerDriver (new oracle.jdbc.driver.OracleDriver());
    Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl","scott","tiger");
            Statement StmtPersoane;
            StmtPersoane = conn.createStatement();
            ResultSet CrsPersoane =StmtPersoane.executeQuery("select marca from personal");
            int jMarca;
            jMarca = 0;
java.util.Date dataJava = new java.text.SimpleDateFormat("dd/mm/yyyy").parse("04/10/2006");
java.sql.Date dataSql = new java.sql.Date(dataJava.getTime());
System.out.println("Data: "+dataSql);
    System.out.println("Angajatii sunt:");
            while(CrsPersoane.next()){
    jMarca = CrsPersoane.getInt("marca");
    System.out.println(jMarca);
    CrsPersoane.close();
    StmtPersoane.close();
    conn.close();
catch(SQLException e)
    e.printStackTrace();
}The error:
Error(24,81): unreported exception: java.text.ParseException; must be caught or declared to be thrown
Any ideas ?

Joins across multiple databases using jdbc

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