Unsupported versions: 7.0
This documentation is for an unsupported version of PostgreSQL.
You may want to view the same page for the current version, or one of the other supported versions listed above instead.

Connecting to the Database

With JDBC, a database is represented by a URL (Uniform Resource Locator). With Postgres, this takes one of the following forms:

  • jdbc:postgresql:database

  • jdbc:postgresql://host/database

  • jdbc:postgresql://hostport/database


The hostname of the server. Defaults to "localhost".


The port number the server is listening on. Defaults to the Postgres standard port number (5432).


The database name.

To connect, you need to get a Connection instance from JDBC. To do this, you would use the DriverManager.getConnection() method:

Connection db = DriverManager.getConnection(url,user,pwd);