User:GQL

ISO/IEC 39075 (GQL)

ISO/IEC 39075 Information technology — Database languages — GQL is an international standard for a graph query language. Published in 2024, it is the first new ISO database language standard since the introduction of SQL in 1987.

Overview

GQL is a declarative language designed for querying and managing property graphs. While SQL was designed for the Relational model, GQL focuses on the relationships between data points as first-class citizens.

Key Features

  • Pattern Matching: Uses a visual syntax (similar to Cypher) to describe paths between nodes.
  • Quantified Path Patterns (QPP): Allows for searching complex, variable-length paths.
  • Schema Support: Supports both fixed schemas and flexible, schema-less data models.

Comparison with SQL/PGQ

Differences between GQL and SQL/PGQ
Feature GQL (ISO/IEC 39075) SQL/PGQ (Part of ISO/IEC 9075)
Scope Standalone graph language SQL extension
Operations Full CRUD capabilities Primarily Read-only
Data Model Native Property Graphs Relational tables viewed as graphs

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