Explain the difference between SQL and NoSQL databases.
Answer:
- SQL Databases (Relational Databases):
- SQL databases store data in structured tables with predefined schemas.
- They use SQL (Structured Query Language) for querying and manipulating data.
- They support ACID (Atomicity, Consistency, Isolation, Durability) properties, ensuring data integrity.
- Examples include MySQL, PostgreSQL, and Oracle.
- NoSQL Databases (Non-relational Databases):
- NoSQL databases store data in flexible, schema-less formats like JSON or BSON documents, key-value pairs, or wide-column stores.
- They are designed for scalability, high availability, and handling unstructured or semi-structured data.
- They offer eventual consistency and horizontal scalability.
- Examples include MongoDB, Cassandra, and Redis.
Software Developer Interview Questions
Software developer interview questions can cover a wide range of topics, depending on the specific role, company, and level of experience being targeted. The software developer interview questions aim to assess a candidate’s technical skills, problem-solving abilities, communication skills, and fit for the role and the company.
Table of Content
- Interview Questions for Internship and Fresher Level
- Interview Questions for Software Development Engineer SDE 1 level
- Interview Questions for Software Development Engineer SDE 2 level
- Interview Questions for Software Development Engineer SDE 3 level