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Suppose Y=Wx²/6Ei(3a-x) for x<=a
Y=Wx²/6Ei(3x-a) for x>a
Use the if function to compute the value of deflection if W is in cell A4,E in A5,I in A6,a in B6 And x in B8

16. (4 pts) Display the different seasons in which trips are offered. List each season only once.

1.Ginny downloads and modifies an open source software program, then uploads the program with a different name. which type of software license is she most likely to be working under?
2. which of the following is an example of financial management software?
3. image-editing software allows you to?
4. digital audio software can be used to?
5. when you subscribe to software, no license is necessary. true or false.

Write a query to list of the names of all programs that do not include the course code ‘EN101’

Write a query to list all program-names and related course-names

Assuming that the program code for Bachelor of Science in Mathematics is ‘BSC4’,
construct a second logical view for Mathematics majors only. Your view must include all
attributes of the student record, the full descriptive name of the Bachelor of Science in
Mathematics program, and the descriptive name of the hall dormitory that the students
reside in.

For the relations s and r in your study manual of our chapter 2 (i.e., joining two relations),
suppose we type a collection of relational algebra queries, and get the following results.
A B C D E
A 2 a 10 B
b 2 a 10 b
Please explain how this happened? If you think this result could happen in practice, please write the
corresponding relational algebra queries; otherwise, please explain why.

QUESTION 2 40 MARKS
2.1 For the relations s and r in your study manual of our chapter 2 (i.e., joining two relations),
suppose we type a collection of relational algebra queries, and get the following results.
A B C D E
A 2 a 10 B
b 2 a 10 b
Please explain how this happened? If you think this result could happen in practice, please write the
corresponding relational algebra queries; otherwise, please explain why. (4

Computer (vendor, model, machinetype)
Model (num, speed, ram, hd, price)
Vendor (name, address, phone)
Where vendor indicates the manufacturer of a computer, and machine type takes values such as “desktop”, “laptop” and “server”. Underline indicates the primary key. Following inclusion dependencies hold: vendor ⊆ name, and model ⊆ num. Express following queries in relational algebra:
A. Find all the vendors who make laptop(s).

We all had the unfortunate experience of seeing how computers can, at times, make life's journey about more difficult. This is especially true in knowledge centric workplaces. Describe an example of a very poorly implemented database that you've encountered (or read about) that illustrates the potential for really messing things up. Include, in your description, an analysis of what might have caused the problems and potential solutions to them. Be sure to provide supporting evidence with citations from the literature.

How many levels of abstraction a typical DB system should hold? What’s the purpose of each of these abstraction levels?

For the relations s and r in your study manual of our chapter 2 (i.e., joining two relations), suppose we type a collection of relational algebra queries, and get the following results. A B C D E A 2 a 10 B b 2 a 10 b Please explain how this happened? If you think this result could happen in practice, please write the corresponding relational algebra queries; otherwise, please explain why.