Home›SQL keywords›NULL🌐EnglishEnglishDeutschEspañolNederlandsPolskiPortuguêsРусскийالعربية한국어中文EntityQ371029· pop 12· linked from 169 articlesNULLAlso known as SQL nullspecial marker and keyword in SQL indicating that something has no valueWikidata factsShow 1 more factshort nameNULLSources (2)wikidata.orgdocs.openalex.orgvia Wikidata · CC0Available in 12 languagesEspañol中文РусскийPortuguêsالعربيةAzerbaijaniBanglaGreekPolskiUkrainian한국어Connectionsthree-valued logicEntityChristopher J. DateEntityCategoriesSQL keywordsUnknown content