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In terms of the following relations:<br/>(Primary Key, Foreign Key)<br/> Student (StudentNumber, StudentName, CourseCode)
Enrolment (StudentNumber, OfferingNumber)
Offering (OfferingNumber, UnitCode, Semester, Year)
Unit (UnitCode, Title)
Course (CourseCode, CourseTitle)
Formulate relational algebra (NOT SQL) expressions for each of the following:
List the Names of students who have taken ICT285 and ICT284 in 2019
List the Names of students who have taken ICT285 but not ICT284 in 2019
The owner of a hardware store wants to design a decision support system to predict how many and which type of nails she should sell and what information she needs to do so. The scenario is described below:
Explain how they are useful in analyzing big datasets. Describe how the analytics of R are suited for Big Data.
Give me an example of augmented reality for a distribution utility business.
determine the torque M required to overcome friction if the shaft supports an axial force P.
A monopolist sells travel services to two groups of people with the following demand curves Q1 = 100 -2P1 (and MR1 = 50 -Q1) and Q2 = 60 -P2
How do we get the column name and constraint type of a acolumn in a single query.
Web Application Security Challenges
Consider a demand-paged computer system where the degree of multiprogramming is currently fixed at four. The system was recently measured to determine utilization of the CPU and the paging disk. Three alternative results are shown below.
Explain the differences between IT Governance and Data Governance, and provide a use case.
Explain what is meant by initialization. Why is it necessary to initialize a circuit for test purposes even if it is not necessary in its system function?
What are the tRectangle and t Context data types defined as?
What is the role of resource capacity planning how does it helps in portfolio management?
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