Category: SQL & Databases

50 questions in SQL & Databases.

What is PostgreSQL partitioning

· SQL & Databases

Scale large tables by splitting them into smaller, manageable partitions based on range, list, or hash strategies.

How to use PostgreSQL functions

· SQL & Databases

Create reusable SQL and PL/pgSQL functions in PostgreSQL for business logic, triggers, and queries.

What is PostgreSQL full text search

· SQL & Databases

Implement powerful text search in PostgreSQL using tsvector, tsquery, and GIN indexes without external engines.

How to use PostgreSQL arrays

· SQL & Databases

Store and query multi-value data natively using PostgreSQL array types and operators.

What is MVCC in PostgreSQL

· SQL & Databases

Understand Multi-Version Concurrency Control and how PostgreSQL handles concurrent reads and writes without locking.

What are PostgreSQL extensions

· SQL & Databases

Enhance PostgreSQL capabilities with extensions that add data types, functions, indexes, and foreign data wrappers.

How to use JSONB in PostgreSQL

· SQL & Databases

Store, index, and query semi-structured data efficiently using PostgreSQL binary JSON format.

What are PostgreSQL data types

· SQL & Databases

Explore PostgreSQL rich type system including arrays, ranges, geometric types, and custom composites.