Write a relational algebra expression that is equivalent to this query.
Consider the following relational schema:
Student(Id,Name,Major)
Took(StudId,Course)
where Id is the primary key in Student. Consider the query
SELECT *
FROM Student S, Took T
WHERE S.Id = T.StudId AND T.Course = 'CS305' AND S.Major = 'EE'
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Within Active Directory, Windows servers can be either a(n) ____________________ or a domain controller.
Fill in the blank(s) with the appropriate word(s).
The GeometricObject and Circle classes are defined in this chapter. Analyze the following code. Which statements are correct?
``` public class Test { public static void main(String[] args) { GeometricObject x = new Circle(3); GeometricObject y = (Circle)(x.clone()); System.out.println(x); System.out.println(y); } } ``` a. The program has a compile error because the clone() method is protected in the Object class. b. After you override the clone() method and make it public in the Circle class, the problem can compile and run just fine, but y is null if Circle does not implement the Cloneable interface. c. To enable a Circle object to be cloned, the Circle class has to override the clone() method and implement the java.lang.Cloneable interface. d. If GeometricObject implements Cloneable and Circle overrides the clone() method, the clone() method will work fine to clone Circle objects.
Case 21-2: Han, an environmental lawyer, travels around the United States to create awareness and propagate the environmental law. She presents such information in various institutes on PowerPoint slides. ?Han creates a PowerPoint presentation on the basic environmental laws. She uses animations to enhance her presentation. While practicing the presentation, she realizes that she needs to reorder the sequence of appearance of the objects in a slide. In this scenario, Han should use the _____ group in the Animations tab.
A. ?Timing B. ?Advanced Animation C. ?Animation D. ?Effect Options
An ________ database cannot be moved between 32-bit and 64-bit versions of Office
A) .accde B) .laccde C) .accdb D) .laccdb