# NULL

> special marker and keyword in SQL indicating that something has no value

**Wikidata**: [Q371029](https://www.wikidata.org/wiki/Q371029)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Null_(SQL))  
**Source**: https://4ort.xyz/entity/null-q371029


## References

1. Freebase Data Dumps. 2013
2. KBpedia
3. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)