Skills101
← All practice quizzes

Quiz: JDBC

5 questionsNo time limitPass: 60%+10 XP on first pass

How Java talks to a database with JDBC: DriverManager, Connection, PreparedStatement and ResultSet, why PreparedStatement stops SQL injection, try-with-resources, commit and rollback, and connection pools.

Log in to take the quiz

Free account · see your score, answers and explanations, earn XP

  1. Question 1

    Which JDBC object holds the rows returned by a SELECT?

  2. Question 2

    Why is PreparedStatement safer than building SQL with string concatenation?

  3. Question 3

    Which method should you call for an UPDATE statement?

  4. Question 4

    In TransferDemo, why are both balances unchanged after the failed transfer?

  5. Question 5

    What is the first column index in a JDBC ResultSet?