SQL for Java Devs · interview question
How can you ensure that a JDBC transaction properly handles concurrent updates to prevent lost updates?
Multiple choiceHardchapter-8-curatedpremiumsql-for-java-devstransactions
Answer and explanation
Correct answer
C. Apply optimistic locking
Why
Optimistic locking is a strategy where the application checks for data consistency before committing a transaction. It helps prevent lost updates by ensuring that no other transaction has modified the data since it was last read.
Test yourself on SQL for Java Devs
A free test with instant, explained results. No account needed.
More SQL for Java Devs questions
- How can JDBC transactions help maintain data integrity during an e-commerce checkout process?
- What would be the effect of not closing a PreparedStatement in a Java application?
- In JDBC, how do you ensure that SQL injection is prevented when executing a query that searches for a user by email?
- Why do teams use SQL JOINs to fetch relational data in a single query in production code?
- What should a repository method mainly encapsulate?
- How can you prevent the N+1 query problem when retrieving a list of orders with their customer details?