JDBC connection steps in java - Java @ Desk

Thursday, May 23, 2013

JDBC connection steps in java

JDBC Connection steps:

1) Register a database driver: This is done in order to register which type of database drivers going to use.

2) Load database driver: This is done to get the connection object using DriverManager class

DriverManager uses the first two terms of the URL (jdbc:msql) to locate a suitable driver from among those loaded at initialization and those loaded explicitly using the same classloader as the current applet or application.

3) Create a statement object using sql query:
PreparedStatement fielStatement = connection.prepareStatement(SQL_STRING);

4) Execute sql statement: This is done using executeQuery() method of PreparedStatement object
ResultSet resultSet = fielStatement.executeQuery();

5) Iterate the ResultSet object to retrieve the data

6) Finally, close the PreparedStatement and Connection object

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