PostgreSQL (often shortened to Postgres) is a powerful, open-source, object-relational database management system (ORDBMS). It is known for its reliability, extensibility, and adherence to the SQL standard. PostgreSQL is designed for enterprise-level performance and is widely used in various applications, including web development, data warehousing, and scientific computing

Key Features and Components:

• Object-Relational : PostgreSQL combines the relational aspects of traditional databases with object-oriented features, allowing for custom data types and advanced functionalities
• Open Source : PostgreSQL is free to use and distribute, and its development is overseen by a large and active open-source community.
• SQL Compliance : It supports the SQL standard, making it easy to integrate with other SQL-based applications
• ACID Compliance :PostgreSQL ensures data integrity through its ACID properties (Atomicity, Consistency, Isolation, Durability)
• Extensibility : PostgreSQL can be extended with user-defined functions, data types, and operators, enabling developers to tailor it to specific needs
• Multiversion Concurrency Control (MVCC) : PostgreSQL uses MVCC, which allows multiple users to access the database concurrently without blocking each other

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