This section provides information about connection URL used by DriverManager to create a database connection.
As we learned earlier, the traditional way to create a connection object is to use
the DriverManager class with a connection URL in the following format:
jdbc:<subprotocol>:<subname>
<subprotocol> in the URL is used to identify the JDBC driver class
which will create a connection object based on information provided in <subname>.
For example, "odbc" in the connection URL "jdbc:odbc:HY_FLAT" identifies the JDBC-ODBC Bridge driver.
"sqlserver" in "jdbc:sqlserver://localhost:1269" identifies the Microsoft JDBC Driver.
<subname> in the URL is used to provide additional information to help the JDBC driver
to identify the database server. If the database server is on remote host on the Internet,
<subname> should have the following format:
jdbc:<subprotocol>://<hostname>:port<subname>
For example, "HY_FLAT" in the connection URL "jdbc:odbc:HY_FLAT" provides
the data source name to help JDBC-ODBC Bridge driver to create a connection object.
"//localhost:1269" in "jdbc:sqlserver://localhost:1269" provides the host name
and the port number to help Microsoft JDBC Driver to create a connection object.
The DriverManager class offers 3 methods for you to create a connection object
using the specified connection URL:
Connection con = DriverManager.getConnection(String url);
Connection con = DriverManager.getConnection(String url,
Properties info)
Connection con = DriverManager.getConnection(String url,
String user, String password)
Tutorials of using connection URLs are included in other sections in this book.
