How does the Connection object relate to transactions in JDBC?
Why does PreparedStatement in JDBC matter in practice?
Why might you prefer to use a connection pool with JDBC?
How can JDBC transactions ensure data integrity during concurrent updates?
What happens when you execute an SQL query using JDBC?
How does JDBC facilitate communication between Java and databases?
What does setting auto-commit to false in JDBC transactions do?
What does an index in a database mainly do?
Why do indexes slow down write operations?
How can EXPLAIN be used to understand a query's execution plan?