URL string format for connecting to Oracle database with JDBC

There are two ways to set this up. If you have an SID, use this (older) format:

jdbc:oracle:thin:@[HOST][:PORT]:SID

If you have an Oracle service name, use this (newer) format:

jdbc:oracle:thin:@//[HOST][:PORT]/SERVICE

Source: this OraFAQ page

The call to getConnection() is correct.

Also, as duffymo said, make sure the actual driver code is present by including ojdbc6.jar in the classpath, where the number corresponds to the Java version you're using.

Look here.

Your URL is quite incorrect. Should look like this:

url="jdbc:oracle:thin:@localhost:1521:orcl"

You don't register a driver class, either. You want to download the thin driver JAR, put it in your CLASSPATH, and make your code look more like this.

UPDATE: The "14" in "ojdbc14.jar" stands for JDK 1.4. You should match your driver version with the JDK you're running. I'm betting that means JDK 5 or 6.

The correct format for url can be one of the following formats:

jdbc:oracle:thin:@<hostName>:<portNumber>:<sid>;  (if you have sid)
jdbc:oracle:thin:@//<hostName>:<portNumber>/serviceName; (if you have oracle service name)

And don't put any space there. Try to use 1521 as port number. sid (database name) must be the same as the one which is in environment variables (if you are using windows).

if you are using oracle 10g expree Edition then:
1. for loading class use DriverManager.registerDriver (new oracle.jdbc.OracleDriver()); 2. for connecting to database use Connection conn = DriverManager.getConnection("jdbc:oracle:thin:username/password@localhost:1521:xe");