Additional Notes
How would you explain a common use case for indexes in SQL databases in an interview?
Track: Java
Topic: SQL for Java Devs
Focus: Indexes
Java: Indexes
Answer
Indexes are often used on columns that are frequently searched.
If a column is regularly used in WHERE clauses, such as a 'username' in a login system, indexing it can vastly improve performance. In an e-commerce context, indexing the 'product_name' in a 'products' table allows fast lookups when customers search for products by name.
If a column is regularly used in WHERE clauses, such as a 'username' in a login system, indexing it can vastly improve performance. In an e-commerce context, indexing the 'product_name' in a 'products' table allows fast lookups when customers search for products by name.
Topics: Indexes Java SQL for Java Devs