Database

PostgreSQL

PostgreSQL is an open-source relational database system used to store, query, relate, and protect application data with strong support for SQL, transactions, constraints, indexing, concurrency, and advanced data types.

Introduction to PostgreSQL: How It Works and Why It Is Used

This introduction explains how PostgreSQL works as a relational database server and why it is widely used for web applications. It covers SQL, tables and relationships, indexes, transactions, MVCC, constraints, query planning, storage, replication, data types, performance, security, and how PostgreSQL works underneath Django’s ORM.

PostgreSQL is a relational database management system.

It is used to store, organize, query, and protect application data.

A Dja ...

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