“relational calculus language”的概念、定义、翻译、参考文献-科学参考

单词	relational calculus language
释义	relational calculus language [ri`lā·shǝn·ǝl `kal·kyǝ·lǝs ´laŋ·gwij] ^{COMPUTER SCIENCE} A higher-level nonprocedural language for operating on a data base of relations, containing statements that can be mapped to the fundamental algebraic operations on the database.
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