JDBCFactroy

OracleDriverManager

<<interface>>Statement

+ executeQuery(String sqlString):ResultSet+ executeUpdate(String sqlString):int+execute(String sqlString):boolean

<<interface>>Connection

+ createStatement():Statement

ResultSet

~ index:int~ name:String[]~age:int[]

+ getString(String columnLabel):String+ getString(int columnIndex):String+ getInt(String columnLabel):int+ getInt(int columnIndex):int

OracleConnection

MySQLStatement

+ executeQuery(String sqlString):ResultSet+ executeUpdate(String sqlString):int+execute(String sqlString):boolean

MySQLDriverManager

MySQLConnection

OracleStatement

<<interface>>DriverManager