NPL (for NonProcedural Language) was a relational database language developed by T.D. Truitt et al. in 1980 for Apple II and MS-DOS. In general, a non-procedural language (also called a declarative language) requires the programmer to specify what the program should do, rather than (as with a procedural language) providing the sequential steps indicating how the program should perform its task(s).
Notes and references
- "An Introduction to Nonprocedural Languages Using NPL", T.D. Truitt et al., McGraw-Hill 1983.
- Truitt, T. D. "NPL: the nonprogrammer's data base language" Computer Language 4(06) June 1987 pp97-103
|This programming-language-related article is a stub. You can help Wikipedia by expanding it.|