PostgreSQL: Documentation: devel: Chapter 2. The SQL Language

September 4, 2025: PostgreSQL 18 RC 1 Released!

Documentation → PostgreSQL devel (2025年09月20日 21:25:11 - git commit e1d917182c1)

Supported Versions: Current (17) / 16 / 15 / 14 / 13

Development Versions: 18 / devel

Unsupported versions: 12 / 11 / 10 / 9.6 / 9.5 / 9.4 / 9.3 / 9.2 / 9.1 / 9.0 / 8.4 / 8.3 / 8.2 / 8.1 / 8.0 / 7.4 / 7.3 / 7.2

This documentation is for an unsupported version of PostgreSQL.
You may want to view the same page for the current version, or one of the other supported versions listed above instead.

Chapter 2. The SQL Language
Prev	Up	Part I. Tutorial	Home	Next

Chapter 2. The SQL Language

Table of Contents

2.1. Introduction
2.2. Concepts
2.3. Creating a New Table
2.4. Populating a Table With Rows
2.5. Querying a Table
2.6. Joins Between Tables
2.7. Aggregate Functions
2.8. Updates
2.9. Deletions

Prev	Up	Next
1.4. Accessing a Database	Home	2.1. Introduction