Home
blog ^_▼
non technical services technical Terms and Conditions
technical ^_▼
cloud concept data db embedded system frameworks and libraries interview questions and answers language plateform process roles and position security tools util web
interview questions and answers ^_▼
generic must know
generic ^_▼
cloud db devops job roles mix programming languages security testing and qa web development
db ^_▼
Database Connectors: Bridging the Gap Between Applications and Data Elasticsearch: Empowering Search and Analytics at Scale Exploring MySQL: The World of Relational Databases HANA Database: Revolutionizing Data Management IBM Db2: Empowering Enterprise Data Management Informix: A Powerful Relational Database Management System MongoDB: Unleashing the Power of NoSQL Databases Neo4j: Unleashing the Power of Graph Databases Oracle Database: Powering Enterprise Data Management PostgreSQL: The World's Most Advanced Open Source Relational Database The Power of SQL Queries The Power of SQL: A Comprehensive Guide Understanding SQL Joins Understanding the Major Databases in the Market: A Comprehensive Guide
PostgreSQL Interview Questions...

PostgreSQL Interview Questions and Answers

Unlock the potential of PostgreSQL with 'PostgreSQL Interview Questions and Answers.' This blog is your ultimate resource for preparing for PostgreSQL-related interviews, featuring a comprehensive collection of questions and detailed answers. Whether you're a database administrator, a software developer, or a PostgreSQL enthusiast, our guide covers PostgreSQL fundamentals, SQL queries, performance optimization, and best practices. Prepare with confidence and explore the world of efficient data management and scalability with PostgreSQL.

1. What is PostgreSQL?

PostgreSQL is an open-source relational database management system (RDBMS) known for its extensibility and standards compliance. It supports both SQL and non-SQL (NoSQL) queries.

2. Explain the difference between PRIMARY KEY and UNIQUE constraint in PostgreSQL.

The PRIMARY KEY constraint uniquely identifies each record in a table and cannot contain NULL values. The UNIQUE constraint ensures that all values in a column are distinct, but it can contain NULL values.

2024-01-17Published On: 2024-01-17