Java – Page 27 – Sharp: NCLEX, Java & Python

Java: Indexes

Why do indexes slow down write operations?

How can EXPLAIN be used to understand a query's execution plan?

Designing Efficient Data Access with Batch Processing?

What should drive index selection on a table?

How does an index speed up data retrieval?

How would you explain a common use case for indexes in SQL databases in an interview?

How would you explain a trade-off of using indexes in a database in an interview?

How can you inspect the execution plan of a SQL query?

Why might you avoid using indexes on columns with unique values?

How does JDBC execute a static SQL query?