 What software components are required?  How do I install the Oracle JDBC driver?  How do I connect to the database?  What form is the data in and how do I use it?  How can I manipulate the database in code?  Why is it important to clean up connection resources?

 Oracle 10g Express -- Installed correctly -- Configured correctly (default/named instance, Schemes…)  Oracle JDBC driver (ojdbc14.jar)  Java SDK 1.4 or later Oracle 10g Express ojdbc14.jar Java App (Connection )

 Include the ojdbc14.jar path in the Java CLASSPATH or add to your IDE’s compile- time libraries set (NetBeans, Eclipse..)  Load the JDBC driver into the JRE using the Class.forName(“oracle.jdbc.OracleDriver”) method (see code for complete details)

 Carefully construct your connection string  Format: My Instance:

 Establish the connection using DriverManager.getConnection(connString)  This returns a java.sql.Connection Object -- With this instance of Connection you can: --Execute queries (returns data) --Execute updates (no data returned)

 An instance of the java.sql.ResultSet Class is what is returned when a java.sql.Statement Object executes a query.  Returns a table data structure Statement.exec uteQuery(sql) ResultSet Connection.crea teStatement DriverManager. getConnection Java App Process data

 Query: string sql = “SELECT * FROM Suppliers”; stmt = dbConn.createStatement(“params”); ResultSet result = stmt.executeQuery(sql); (see code for complete details)  Update: string sql = “DROP TABLE Suppliers”; stmt = dbConn.createStatement(“params”); int tempInt = stmt.executeUpdate(sql);

 It is very important to clean up your Connection, Statement, and ResultSet Objects after use!  If you have a ResultSet open during the same time that you try to open a new one in the same memory space you will get a run-time error!