What are the differences between SQL and NoSQL databases?

• SQL Databases (Relational Databases): These are structured databases that use

Structured Query Language (SQL) for defining and manipulating data. They store

data in tables with rows and columns. SQL databases enforce a strict schema,

meaning the structure of the data must be defined beforehand.

Examples: MySQL, PostgreSQL, SQL Server, Oracle

• NoSQL Databases (Non-relational Databases): These databases are more flexible

and allow storage of unstructured or semi-structured data. They don't require a fixed

schema and are often used for large-scale applications where flexibility, scalability,

and speed are more important than the strict relational model.

Examples: MongoDB, Cassandra, CouchDB, Firebase