OracleXML and TNS errors

Question

I have a very annoying issue. I'm attempting to use the
OracleXML front-end client and I keep getting "oracle not
available" and "tns: couldn't resolve name" messages. I use JDBC
on this machine all the time so I doubt it is my environment.
Oracle has been installed on this machine for sometime,JDBC
developing has be working for sometime, now OracleXML breaks.
What is the deal?
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Answer 1

Hi Chris,
Here are some excerpts from various replies that I had posted
in this forum regarding connection problems,
The OracleXML front-end currently assumes the oci8 jdbc protocol
and connects using the
string "jdbc:oracle:oci8:"+username_password_string+"@"
We will update the front-end in the next version so that we can
take in the JDBC connect string as well in the argument list.
One thing for you to try out would be to write a small java
program against the OracleXMLQuery class to see if that works.
I have attached a very simple program below:-
import java.sql.*;
import java.math.*;
import oracle.xml.sql.query.*;
import oracle.jdbc.*;
import oracle.jdbc.driver.*;
public class testXML{
public static void main(String args[]) throws SQLException
DriverManager.registerDriver
(new oracle.jdbc.driver.OracleDriver());
Connection conn = (Connection)
DriverManager.getConnection("jdbc:oracle:oci8:scott/tiger@");
Statement stmt = conn.createStatement();
ResultSet rset = stmt.executeQuery("select * from emp");
OracleXMLQuery qry = new OracleXMLQuery(conn,rset);
String xmlString = qry.getXMLString();
System.out.println(" OUPUT IS "+xmlString);
This code does a select from emp table available in scott/tiger
schema. U can change the login and the table names
appropriately. Setup all the environment variables etc.. (see
release notes), save this as testXML.java, run javac to get the
class and execute it using "java testXML". If this doesnt work,
try changing the getConnection line to use the thin jdbc, such
as,
DriverManager.getConnection
("jdbc:oracle:thin:@","scott","tiger");
You can check out the JDBC documentation for how to specify
your connection for your particular setup (such as specifying
the port number etc.. if needed).
Lemme know if it works,
I think the problem in your case must be the JDBC connect
string. Please check that and also make sure that the ORACLE_SID
etc.. is set correctly.
Thanks
Murali
================================================================
Chris Madison (guest) wrote:
: I have a very annoying issue. I'm attempting to use the
: OracleXML front-end client and I keep getting "oracle not
: available" and "tns: couldn't resolve name" messages. I use
JDBC
: on this machine all the time so I doubt it is my environment.
: Oracle has been installed on this machine for sometime,JDBC
: developing has be working for sometime, now OracleXML breaks.
: What is the deal?
null