NPL (for NonProcedural Language) was a relational database language developed by T.D. Truitt et al in 1980 for Apple II and MS-DOS.
Reference: "An Introduction to Nonprocedural Languages Using NPL", T.D. Truitt et al, McGraw-Hill 1983.
NPL (for NonProcedural Language) was a relational database language developed by T.D. Truitt et al in 1980 for Apple II and MS-DOS.
Reference: "An Introduction to Nonprocedural Languages Using NPL", T.D. Truitt et al, McGraw-Hill 1983.
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