Practice Basic Steps In Jdbc Programming (19.4) - Database Connectivity (e.g., JDBC)

Practice: Basic Steps in JDBC Programming

Lesson 19.4Database Connectivity (e.g., JDBC)

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the JDBC package used for?
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Think about what classes are included.
Question 2.
Why is it important to close the connection?
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Consider what happens to resources that are not released.
3Question 3.
Which method is used to establish a connection in JDBC?
- `getConnection()`
- `createConnection()`
- `initConnection()`
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Think about what the DriverManager class does.
4Question 4.
True or False: You can skip loading the driver in JDBC after version 4.0.
- True
- False
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Consider how updates might simplify the process.
Question 5.
Consider a scenario in which your application needs to connect to multiple databases. How would you manage JDBC connections effectively to avoid resource leaks?
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Think about scalability and reusability.
Question 6.
Create a simple JDBC program that connects to a MySQL database, retrieves all user data, and displays it. Ensure to handle exceptions and close connections properly.
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Ensure you utilize both `ResultSet` to collect results and close resources at the end.

4 more questions in this section. Enroll free to practise them all.