FC: A RELATIONAL QUERY LANGUAGE HAVING THE PROPERTY OF FUNCTIONAL COMPLETENESS
نویسندگان
چکیده
منابع مشابه
A Conserative Property of a Nested Relational Query Language
We proposed in [7] a nested relational calculus and a nested relational algebra based on structural recursion [6,5] and on monads [27,16]. In this report, we describe relative set abstraction as our third nested relational query language. This query language is similar to the well known list comprehension mechanism in functional programming languages such as Haskell [ll], Miranda [24], KRC [23]...
متن کاملQuery Translation . . . into a Relational Query Language
In this paper, we present a query translation algorithm which allows object-oriented queries to be automatically translated into a relational query language. Our goal is to provide an improved query interface for existing relational database systems. The translation algorithm, we propose in this paper may be used to directly access relational databases, but it may also be useful in the context ...
متن کاملA Functional Characterization of the Hurewicz Property
For a Tychonoff space $X$, we denote by $C_p(X)$ the space of all real-valued continuous functions on $X$ with the topology of pointwise convergence. We study a functional characterization of the covering property of Hurewicz.
متن کاملSRQL: Sorted Relational Query Language
A relation is an unordered collection of records. Often, however, there is an underlying order (e.g., a sequence of stock prices), and users want to pose queries that reflect this order (e.g., find a weekly moving average). SQL provides no support for posing such queries. In this paper, we show how a rich class of queries reflecting sort order can be naturally expressed and efficiently executed...
متن کاملthe impact of training on second language writing assessment: a case of raters’ biasedness
چکیده هدف اول این تحقیق بررسی تأثیر آموزش مصحح بر آموزش گیرندگان براساس پایایی نمره های آنها در پنج بخش شامل محتوا ، سازمان ، لغت ، زبان و مکانیک بود. هدف دوم این بود که بدانیم آیا تفاوتهای بین آموزشی گیرندگان زن و مرد در پایایی نمرات آنها وجود دارد. برای بررسی این موارد ، ما 90 دانشجو در سطح میانه (متوسط) که از طریق تست تعیین سطح شده بودند انتخاب شدند. بعد از آنها خواستیم که درباره دو موضوع ا...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Cybernetics and Systems
سال: 1992
ISSN: 0196-9722,1087-6553
DOI: 10.1080/01969729208927465