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"(A) student(s) read (a) book(s)." Here, it is illustrated that both "students" and "books" act as bare neutral nouns that can behave as singular, plural, or a mass noun depending on the context. This allows for each sentence to have up to nine interpretations (any pair of three possibilities).
In relational algebra, a projection is a unary operation written as ,..., (), where is a relation and ,..., are attribute names. Its result is defined as the set obtained when the components of the tuples in are restricted to the set {,...,} – it discards (or excludes) the other attributes.
In relational algebra, a selection (sometimes called a restriction in reference to E.F. Codd's 1970 paper [1] and not, contrary to a popular belief, to avoid confusion with SQL's use of SELECT, since Codd's article predates the existence of SQL) is a unary operation that denotes a subset of a relation.
Other more subtle methods included restrictions on scholarships, rejection of transfer students, and preferences for alumni sons and daughters. [ citation needed ] Legacy preference for university admissions was devised in 1925 at Yale University , where the proportional number of Jews in the student body was growing at a rate that became ...
Using single inheritance, a subclass can inherit from only one superclass. Continuing the example given above, a Person object can be either a Student or an Employee, but not both. Using multiple inheritance partially solves this problem, as one can then define a StudentEmployee class that inherits from both Student and Employee. However, in ...
The true toll is likely much higher, experts say, since officials signing a death certificate may not be aware of the circumstances that led to the hospitalization or death, and in order to ...
Each attribute can be a class or an individual. The kind of object and the kind of attribute determine the kind of relation between them. A relation between an object and an attribute express a fact that is specific to the object to which it is related. For example, the Ford Explorer object has attributes such as: has as name Ford Explorer
International Education Corporation aimed to maximize enrollment and profits by manipulating test outcomes to benefit from the federal student aid program, according to an investigation.