Re: JDBC

Cindy,

I have a thin driver (I have classes111.zip). I got things working. I changed the host from localhost to the name of my machine (which was what was in my tnsnames.ora and listener.ora files). They map to different IP addresses (127.0.0.1 vs 209.19.117.6) which should both indicate the same machine, but I guess Oracle isn't smart enough to figure that out.

Thanks for the help.

-Sam

C. Ferguson <c_ferguson_at_rationalconcepts.com> wrote in message news:38729157.6DCD407D_at_rationalconcepts.com...
> From your dump, it looks like you are using the thin, and therefore, don't
 worry
> about the oci error. That error appears to indicate that you don't have
 that
> driver. I'm not sure what makes you think you are running the oci driver.
>
> So, the thin driver used to be in a classes111.zip or a classes12.zip and
 now
> may be in a classes815.zip? if it's the thin driver.
> This file should be in your classpath. Since you didn't specify a
 classpath
> option in your java command, I am making that assumption.
>
> To specifcally tell the vm what classes to use, use java -classpath
> .:./classes111.zip dbTest ....
> (using unix notation. just replace the colon with a semicolon for the
 windows
> notation and use appropriate directory notation)
>
> And if you want to see the actual line number that it is dumping at, use
 java
> -Djava.compiler=NONE -classpath ....
> where the compiler=NONE is telling the vm to not use the jit.
>
> You really need to determine what driver it is you are using before I can
 give
> you more help and in doing that step, you will perhaps not need my help.
>
> cindy
>
> Sam Fredland wrote:
>
> > Cindy,
> >
> > Thanks. I looked at the document. I'm not sure whether I have the thin
 or
> > the OCI driver. I ran the following sample program:
> >
> > import oracle.jdbc.driver.*;
> > import java.sql.*;
> >
> > public class JDBCTest {
> >
> > public static void main(String[] argv) throws Exception, SQLException {
> > String dbURL = argv[0];
> > System.out.println( dbURL );
> > String username = "ucboulder";
> > String password = "ucboulder";
> >
> > try {
> > Class.forName("oracle.jdbc.driver.OracleDriver");
> > } catch (Exception e) {
> > e.printStackTrace();
> > throw new Exception("Cannot load Driver " +
> > "oracle.jdbc.driver.OracleDriver");
> > }
> > try {
> > Connection conn = DriverManager.getConnection(dbURL, username,
 password);
> > } catch (SQLException e) {
> > e.printStackTrace();
> > throw new SQLException(e.getMessage());
> > }
> > }
> > }
> >
> > The results for both the thin and OCI drivers were:
> >
> > ----------
> > java JDBCTest
> >
 jdbc:oracle:oci8:_at_(description=(address=(host=localhost)(protocol=tcp)(port=
> > 1521))(connect_data=(sid=myp)))
> >

 jdbc:oracle:oci8:_at_(description=(address=(host=localhost)(protocol=tcp)(port=
> > 1521))(connect_data=(sid=myp)))
> > Exception in thread "main" java.lang.UnsatisfiedLinkError: no ocijdbc8
 in
> > java.library.path
> > at java.lang.ClassLoader.loadLibrary(ClassLoader.java, Compiled Code)
> > at java.lang.Runtime.loadLibrary0(Runtime.java, Compiled Code)
> > at java.lang.System.loadLibrary(System.java, Compiled Code)
> > at oracle.jdbc.oci8.OCIDBAccess.logon(OCIDBAccess.java, Compiled Code)
> > at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java,
> > Compiled Code)
> > at
 oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java,
> > Compiled Code)
> > at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java, Compiled
> > Code)
> > at java.sql.DriverManager.getConnection(DriverManager.java, Compiled
 Code)
> > at java.sql.DriverManager.getConnection(DriverManager.java, Compiled
 Code)
> > at JDBCTest.main(JDBCTest.java, Compiled Code)
> > ----------
> > java JDBCTest jdbc:oracle:thin:_at_localhost:1521:myp
> > jdbc:oracle:thin:_at_localhost:1521:myp
> > java.sql.SQLException: The Network Adapter could not establish the
> > connection
> > at oracle.jdbc.dbaccess.DBError.check_error(DBError.java, Compiled
 Code)
> > at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java,
> > Compiled Code)
> > at

 oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java,
> > Compiled Code)
> > at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java, Compiled
> > Code)
> > at java.sql.DriverManager.getConnection(DriverManager.java, Compiled
 Code)
> > at java.sql.DriverManager.getConnection(DriverManager.java, Compiled
 Code)
> > at JDBCTest.main(JDBCTest.java, Compiled Code)
> > Exception in thread "main" java.sql.SQLException: The Network Adapter
 could
> > not establish the connection
> > at JDBCTest.main(JDBCTest.java, Compiled Code)
> >
> > which makes me believe I'm not running a thin driver. But I've no idea
 what
> > to make of:
> >
> > Exception in thread "main" java.lang.UnsatisfiedLinkError: no ocijdbc8
 in
> > java.library.path
> >
> > Any idea?
> >
> > -Sam
>
Received on Wed Jan 05 2000 - 00:00:00 CET