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    <p><em>Note:</em> This was originally a comment but got too long. It seems people see NFE and guess it's port that's null. Which is misleading. Here is a WORKING code showing port is not necessary. Please avoid misleading answers.</p> <pre><code> try { Class.forName("com.mysql.jdbc.Driver"); String sourceURL = "jdbc:mysql://localhost/sodb"; Connection conn = DriverManager.getConnection(sourceURL, "naishe", "p2ssword"); Statement st = conn.createStatement(); ResultSet rs = st.executeQuery("select count(*) from test_tab"); while(rs.next()){ System.out.println(rs.getString(1)); } } catch(ClassNotFoundException cnfe) { System.err.println(cnfe); } catch(SQLException sqle) { System.err.println(sqle); } </code></pre> <p>It prints <code>3</code> (which is number of records in the table test_tab) correctly.</p> <hr> <p>If you are using <em>standard driver</em>, you <strong>do not need port</strong>, it defaults to 3306! See here <a href="http://dev.mysql.com/doc/refman/5.5/en/connector-j-reference-configuration-properties.html" rel="nofollow">http://dev.mysql.com/doc/refman/5.5/en/connector-j-reference-configuration-properties.html</a></p> <blockquote> <p>JDBC URL Format</p> <p>The JDBC URL format for MySQL Connector/J is as follows, with items in square brackets ([, ]) being optional:</p> <p><code> jdbc:mysql://[host][,failoverhost...]<strong>[:port]</strong>/[database] » [?propertyName1][=propertyValue1][&amp;propertyName2][=propertyValue2]... </code></p> <p>If the host name is not specified, it defaults to 127.0.0.1. <strong>If the port is not specified, it defaults to 3306, the default port number for MySQL servers.</strong> </p> </blockquote>
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    1. CO-1 he is using mysql, you have to provide port number
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    2. CO@NandkumarTekale Did you actually read the code. I am using MySQL and NOT using port and it work! you do NOT have to provide port. It defaults to 3306.
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    3. COI will remove downvote, if you show me proof on documentation
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