Additional Notes
How would you explain a phantom read in JDBC transactions in an interview?
Track: Java
Topic: SQL for Java Devs
Focus: Transactions
Java: Transactions
Answer
A phantom read occurs when new records are added during a transaction.
Phantom reads happen when a transaction reads rows that match a search condition and, upon re-execution, finds new rows added by another transaction. In an order processing system, a phantom read might occur if a new order is added to the database while another transaction is calculating totals.
Phantom reads happen when a transaction reads rows that match a search condition and, upon re-execution, finds new rows added by another transaction. In an order processing system, a phantom read might occur if a new order is added to the database while another transaction is calculating totals.
Topics: Java SQL for Java Devs Transactions