16 Questions
What does the executeQuery() method return?
A ResultSet object
What is used instead of the parameter in Prepared Statement for passing values dynamically?
?
Which method is used to create a PreparedStatement in Java?
prepareStatement()
What is the purpose of using PreparedStatement in Java?
To execute recompiled SQL statements
What step is required to establish a connection with the database in a Java application?
Step 4
Which method is used to load the drivers in a Java application?
forName()
How is the Oracle driver loaded into memory at runtime?
Class.forName("com.mysql.jdbc.Driver")
When should the drivers be registered in a Java program?
Once in the program
What does the DriverManager.registerDriver() method do?
Load the Oracle driver into memory at runtime
What is the purpose of the Connection object in Java?
To establish a connection with the database
What is the purpose of the Statement st = con.createStatement() in Java?
To interact with the database by sending SQL commands
What is the purpose of DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver())?
To register the Oracle driver for use
What is the role of 'con' in the line 'Connection con = DriverManager.getConnection(url,user,password)'?
It is a reference to the Connection interface
What does 'url' represent in 'String url = “jdbc:mysql://localhost/empdetails”'?
It holds the IP address of the database
What is the purpose of 'Statement st = con.createStatement();'?
To create a statement for interacting with the database
Learn the steps to connect a Java application with a database using JDBC. Understand how to import packages, load drivers, establish a connection, create a statement, execute queries, and close the connection.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
