JDBC via JNDI

// define sql queryString sql = "select firstname from users";// initialize database connection objectsConnection conn = null;Statement stmt = null;ResultSet rs = null;// get JNDI JDBC connectionInitialContext ctxt = new InitialContext();DataSource ds = (DataSource) ctxt.lookup("jdbc/TrackIt");conn = ds.getConnection(); // run sql objectsstmt = conn.createStatement();rs =