PostgreSQL Database

PostgreSQL, often simply called Postgres, is a powerful, open-source object-relational database system (ORDBMS) renowned for its reliability, feature robustness, and strong adherence to SQL standards. With over 35 years of active development, it extends the traditional relational model by supporting complex data structures, user-defined data types, and custom functions, making it highly extensible and capable of handling intricate queries. Its strong support for data integrity, ACID transactions, and advanced concurrency control makes it a versatile and popular choice for a wide range of applications, from simple web services to large, mission-critical data warehousing and analytics systems.

  1. Introduction to PostgreSQL
    1. Overview of PostgreSQL
      1. Definition and Purpose
        1. Use Cases and Applications
        2. Core Concepts of Relational Databases
          1. Relational Model Fundamentals
            1. Tables, Rows, and Columns
              1. Keys
                1. Primary Keys
                  1. Foreign Keys
                    1. Unique Keys
                    2. Relationships
                      1. One-to-One Relationships
                        1. One-to-Many Relationships
                          1. Many-to-Many Relationships
                          2. Normalization and Denormalization
                          3. History and Development of PostgreSQL
                            1. Origins and POSTGRES Project
                              1. Major Milestones and Releases
                                1. Community and Governance
                                2. Key Features and Advantages
                                  1. ACID Compliance
                                    1. Extensibility
                                      1. Custom Data Types
                                        1. Custom Functions
                                          1. Extensions
                                          2. Standards Conformance
                                            1. SQL Standard Support
                                              1. Object-Relational Features
                                              2. Object-Relational Model
                                                1. Inheritance
                                                  1. Table Extensions
                                                    1. Type Extensions
                                                    2. Open Source Licensing
                                                      1. Cross-Platform Support
                                                      2. PostgreSQL Architecture
                                                        1. Client-Server Model
                                                          1. Client Applications
                                                            1. Server Process
                                                            2. Process Architecture
                                                              1. Postmaster Daemon
                                                                1. Backend Processes
                                                                  1. Background Processes
                                                                    1. Autovacuum
                                                                      1. Checkpointer
                                                                        1. WAL Writer
                                                                          1. Archiver
                                                                            1. Stats Collector
                                                                          2. Memory Architecture
                                                                            1. Shared Buffers
                                                                              1. WAL Buffers
                                                                                1. Work Memory
                                                                                  1. Maintenance Work Memory
                                                                                    1. Temporary Buffers
                                                                                    2. Physical Storage Structure
                                                                                      1. Tablespaces
                                                                                        1. Databases
                                                                                          1. Schemas
                                                                                            1. Tables
                                                                                              1. Indexes
                                                                                                1. Data Files
                                                                                                  1. Pages and Tuples
                                                                                                    1. Write-Ahead Log
                                                                                                      1. System Catalogs

                                                                                                  Go to top

                                                                                                  Next

                                                                                                  2. Installation and Basic Management