What is the difference between SQL and NoSQL databases?
SQL databases are relational; NoSQL databases are non-relational and can store unstructured data.
When would you choose a NoSQL database over SQL?
When dealing with large volumes of unstructured or semi-structured data requiring scalability.
What is ACID in databases?
Atomicity, Consistency, Isolation, Durability – properties ensuring reliable transactions.
How do you handle database migrations?
Using tools like migrate or mongoose for schema changes over time
