Intern
What databases have you used in your projects?
sobes.tech AI
Answer from AI
I have worked with various types of databases depending on project requirements.
Relational databases:
- PostgreSQL: Often used as the primary transactional database due to its reliability, extensibility, and support for ACID properties.
- MySQL: Used in web applications and projects with simpler data, where speed and ease of deployment are important.
- Oracle Database: Worked with it in enterprise systems where high performance and scalability were required.
- H2 Database: Used for development, testing, and embedded applications because of its lightweight nature and ability to operate in-memory.
NoSQL databases:
- MongoDB: Used for storing unstructured or semi-structured data, such as user profiles, logs, or data from external APIs.
- Redis: Used as a cache, message broker, and for storing session data due to its high read/write speed.
- Cassandra: Worked with it in projects requiring high availability and horizontal scalability for large volumes of data.
Graph databases:
- Neo4j: Used for modeling and querying complex interconnected data, such as in social networks or recommendation systems.
Time-series databases:
- InfluxDB: Used for collecting and analyzing metric and log data with time attachment.
My experience includes not only working with SQL queries and ORM (Hibernate, Spring Data JPA), but also with various drivers, connection pool configurations (HikariCP, c3p0), query optimization, and data schema management (Flyway, Liquibase).