PostgreSQL – Advanced Database

PostgreSQL is a powerful, open-source object-relational database system with over 35 years of active development. Known for reliability, feature robustness, and performance, it handles workloads from single machines to data warehouses.

Key Features

• ACID Compliance: Strong data integrity guarantees
• JSON Support: Native JSON and JSONB types
• Full-Text Search: Advanced search capabilities
• Extensions: PostGIS, pg_stat_statements, and more
• Partitioning: Table partitioning for large datasets

Installation

Install PostgreSQL on Ubuntu:

sudo apt update
sudo apt install postgresql postgresql-contrib
sudo systemctl enable postgresql
sudo systemctl start postgresql

Usage Examples

Basic PostgreSQL operations:

# Connect as postgres user
sudo -u postgres psql

# Create database and user
CREATE DATABASE myapp;
CREATE USER appuser WITH ENCRYPTED PASSWORD 'password';
GRANT ALL PRIVILEGES ON DATABASE myapp TO appuser;

# Create table with JSON
CREATE TABLE products (
    id SERIAL PRIMARY KEY,
    name TEXT NOT NULL,
    attributes JSONB
);

Benefits

PostgreSQL excels at complex queries and large datasets. Its extensibility and standards compliance make it ideal for applications requiring advanced database features.

Download PostgreSQL