# PL/Python

> implementation of the Python programming language for PostgreSQL database systems

**Wikidata**: [Q4046204](https://www.wikidata.org/wiki/Q4046204)  
**Source**: https://4ort.xyz/entity/pl-python

## Summary
PL/Python is an implementation of the Python programming language specifically designed for PostgreSQL database systems. It functions as a procedural programming language and domain-specific language that allows developers to write stored procedures directly within the database environment. This tool is licensed under the PostgreSQL License and is copyrighted, serving as a bridge between Python's scripting capabilities and PostgreSQL's data management.

## Key Facts
- **Definition**: PL/Python is an implementation of the Python programming language for PostgreSQL database systems.
- **Classification**: It is categorized as both a procedural programming language and a domain-specific language.
- **Primary Use**: The technology is utilized for creating stored procedures within database systems.
- **Programming Paradigm**: It operates under the procedural programming paradigm.
- **Licensing**: The software is distributed under the PostgreSQL License.
- **Copyright Status**: The entity is copyrighted.
- **Hashtag**: The official hashtag associated with the project is #PlPython.
- **GitHub Topic**: It is indexed under the GitHub topic "plpython".
- **User Manual**: An official user manual is available in English at https://www.postgresql.org/docs/current/plpython.html.
- **Language Dialect**: It is considered a dialect of the Python computer language.
- **Google Knowledge Graph ID**: The entity is identified by the ID /g/120rg2_8.
- **Wikipedia Presence**: A Wikipedia entry exists for this entity in the Russian language (ru).
- **Sitelink Count**: The entity has a sitelink count of 1.

## FAQs
**What is the primary function of PL/Python within a database environment?**
PL/Python serves as a mechanism to implement stored procedures using the Python programming language. It enables database administrators and developers to execute Python code directly inside PostgreSQL systems.

**Under what legal framework is PL/Python distributed?**
The software is released under the PostgreSQL License, which governs its usage and distribution. It maintains a copyrighted status while adhering to this specific open-source licensing model.

**How is PL/Python classified in terms of programming paradigms?**
It is defined as a procedural programming language that also functions as a domain-specific language. This dual classification highlights its role in handling specific database tasks through a procedural approach.

**Where can users find official documentation for PL/Python?**
Official user manuals are available in English via the PostgreSQL documentation website. The specific resource is hosted at the URL https://www.postgresql.org/docs/current/plpython.html.

## Why It Matters
PL/Python is significant because it extends the capabilities of PostgreSQL by integrating the versatility of the Python programming language directly into the database layer. This integration solves the problem of needing to move data out of the database to process it with external Python scripts, thereby improving efficiency and reducing latency. By acting as a domain-specific language and a procedural programming language, it allows for complex logic to be encapsulated within stored procedures, streamlining database administration and application development. Its existence as a dialect of Python ensures that developers can leverage familiar syntax and libraries while maintaining the security and transactional integrity of the PostgreSQL environment.

## Notable For
- Being a dedicated implementation of Python specifically tailored for PostgreSQL database systems.
- Operating as a dialect of the Python computer language within a database context.
- Functioning as a domain-specific language for database procedural tasks.
- Utilizing the PostgreSQL License for its distribution and legal framework.
- Maintaining an official presence on GitHub under the topic "plpython".
- Providing a direct link to procedural programming paradigms within the database ecosystem.

## Body

### Core Identity and Classification
PL/Python is fundamentally an implementation of the Python programming language designed for PostgreSQL database systems. It is formally classified as a procedural programming language, aligning with the procedural programming paradigm. Additionally, it holds the distinction of being a domain-specific language, tailored specifically for database operations. As a dialect of the computer language Python, it adapts the general-purpose features of Python to fit the constraints and requirements of the PostgreSQL environment.

### Technical Specifications and Usage
The primary utility of PL/Python is the creation and execution of stored procedures. This allows complex logic to reside within the database itself rather than in external application layers. The system operates under the procedural programming paradigm, ensuring that execution flows through a sequence of commands. It is indexed on GitHub under the specific topic "plpython," facilitating discovery for developers seeking this integration. The entity is also associated with the hashtag #PlPython, which serves as a social media identifier for the technology.

### Licensing and Legal Status
PL/Python is distributed under the PostgreSQL License, a permissive open-source license compatible with the broader PostgreSQL ecosystem. Despite its open-source nature, the software maintains a copyrighted status. This legal framework ensures that while the code is accessible and modifiable, the intellectual property rights are preserved under the terms of the PostgreSQL License.

### Documentation and Resources
Official documentation for users is provided in the English language. The user manual is accessible via the URL https://www.postgresql.org/docs/current/plpython.html. This resource serves as the definitive guide for implementing and managing PL/Python within PostgreSQL installations. The entity is also tracked in the Google Knowledge Graph with the unique identifier /g/120rg2_8.

### Community and Language Presence
The entity has a presence in the Russian language on Wikipedia, indicated by the "ru" language code in its metadata. It currently holds a sitelink count of 1, reflecting its specific footprint in the linked data ecosystem. The relationship between PL/Python and the broader category of procedural programming languages is well-documented, with a sitelink count of 5 associated with the parent class of procedural programming languages. This connection underscores its role within the wider landscape of programming language implementations.