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Language peer sets for NPL: United States↑ United States/1980↑ Designed 1980 ↑ 1980s languages ↑ Fourth generation↑ Late Cold War↑ Business Data Processing ↑ Business Data Processing/1980↑ Business Data Processing/us ↑ NPL(ID:916/npl003)Non-Procedural Languagealternate simple viewCountry: United States Designed 1980 Published: 1980 Sammet category: Business Data Processing for Non-Procedural Language. 1980. A relational database language Structures: References: Search in: Google Google scholar World Cat Yahoo Overture DBLP Monash bib NZ IEEE  ACM portal CiteSeer CSB ncstrl jstor Bookfinder |