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java.sql.SQLException: Io exception: Unknown host specified  RSS feed

 
Ajit Sawant
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Hello,
I'm geting the following error message when trying to connect to Oracle database.

Exception in thread "main" java.sql.SQLException: Io exception: Unknown host specified
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:255)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:387)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:441)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
at testjdbc.main(testjdbc.java:22)
--
Thanks,
Ajit
 
Vijitha Kumara
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That looks like the URL specified is wrong or something.. Can you show us the code you are trying to coonect to DB?
 
Deepak Bala
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The error is simple. The DB host you mentioned does not exist. Try to ping it and double check the JDBC URL
 
It is sorta covered in the JavaRanch Style Guide.
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