# NonStop SQL

> fault tolerant relational database management system

**Wikidata**: [Q1218487](https://www.wikidata.org/wiki/Q1218487)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/NonStop_SQL)  
**Source**: https://4ort.xyz/entity/nonstop-sql

## Summary
NonStop SQL is a fault-tolerant relational database management system developed by Tandem Computers, designed for high availability and reliability. It is known for its robust fault tolerance features, making it suitable for critical applications requiring minimal downtime.

## Key Facts
- **Use**: Relational database management system
- **Developer**: Tandem Computers
- **Aliases**: HP NonStop SQL
- **Instance of**: Software
- **Wikipedia title**: NonStop SQL
- **Wikipedia languages**: English, Spanish, Persian, Hungarian
- **Wikidata description**: Fault-tolerant relational database management system

## FAQs
### Q: What is NonStop SQL used for?
A: NonStop SQL is used as a relational database management system, particularly in environments requiring high fault tolerance and reliability, such as critical business applications.

### Q: Who developed NonStop SQL?
A: NonStop SQL was developed by Tandem Computers, now part of Hewlett Packard Enterprise (HPE).

### Q: Is NonStop SQL free to use?
A: The source material does not specify licensing details, so availability may vary. It is primarily associated with enterprise-grade systems.

### Q: What makes NonStop SQL fault-tolerant?
A: NonStop SQL is designed with built-in redundancy and failover mechanisms to ensure continuous operation even in the event of hardware or software failures.

### Q: Where can I find more information about NonStop SQL?
A: Detailed information is available on Wikipedia in multiple languages, including English, Spanish, Persian, and Hungarian.

## Why It Matters
NonStop SQL plays a crucial role in industries where system uptime is critical, such as finance, healthcare, and telecommunications. Its fault-tolerant architecture ensures that data remains accessible and transactions continue even during hardware or software failures, minimizing downtime and data loss. This makes it a preferred choice for mission-critical applications that cannot afford interruptions. By leveraging advanced redundancy and failover mechanisms, NonStop SQL helps organizations maintain operational continuity, supporting business resilience and reliability.

## Notable For
- **Fault Tolerance**: Known for its robust fault-tolerant design, ensuring high availability and reliability.
- **Enterprise Use**: Primarily used in critical enterprise environments where downtime is unacceptable.
- **Redundancy Features**: Implements redundancy at both hardware and software levels to prevent data loss.
- **Legacy System**: Originally developed by Tandem Computers, now maintained by Hewlett Packard Enterprise (HPE).
- **Widespread Documentation**: Available in multiple languages on Wikipedia, indicating its broad adoption and relevance.

## Body
### Overview
NonStop SQL is a relational database management system designed for fault tolerance, making it ideal for environments requiring high availability. It was developed by Tandem Computers and is now maintained by Hewlett Packard Enterprise (HPE).

### Development and Ownership
- Developed by Tandem Computers, a company later acquired by HPE.
- Known by the alias HP NonStop SQL after the acquisition.

### Technical Features
- **Fault Tolerance**: Built with redundancy and failover mechanisms to ensure continuous operation.
- **Relational Database**: Functions as a standard relational database management system.

### Availability and Documentation
- Documented on Wikipedia in English, Spanish, Persian, and Hungarian.
- No specific licensing details are provided in the source material.

### Industry Impact
- Used in critical applications where downtime is not an option, such as finance and healthcare.
- Supports business continuity by preventing data loss and ensuring system reliability.