Exam (elaborations)
INF2603 EXAM PACK 2023
- Course
- Institution
INF2603 EXAM PACK 2023 QUESTIONS AND ANSWERS
[Show more]
Seller
Follow
mulah11
Reviews received
Content preview
INF2603EXAM PACK
2023
QUESTIONS WITH ANSWERS
Email; musyokah11@gmail.com
,INF2603
Exam Pack
2023
LATEST QUESTIONS
AND ANSWERS
,INF2603 2018 MAY JUNE MEMO
1.1 b
1.2 a
1.3a
1.4a
1.5d
1.6a**
1.7d
1.8a
1.9b
1.10 a
Section B
Question 2
a. index - In database design, a list of keys (or keywords), each of which identifies a
unique record. Indices make it faster to find specific records
b. metadata- data about data
, c. Determinant - is an attribute that can be used to determine the values assigned to other
attributes in the same row
d. Identifier - The database object name for example
e. Key attribute - is the unique characteristic of the entity. For ex. Name and hire date are
attributes of the entity Employee.
f. Constraint - are part of a database schema definition. A constraint is usually associated
with a table and is created with a CREATE CONSTRAINT or CREATE ASSERTION
SQL statement.
a. Database design must reconcile the following requirements:
Design elegance requires that the design must adhere to design rules concerning
nulls, derived attributes, redundancies, relationship types, and so on.
Information requirements are dictated by the end users
Operational (transaction) speed requirements are also dictated by the end users.
Clearly, an elegant database design that fails to address end user information
requirements or one that forms the basis for an implementation whose use
progresses at a snail's pace has little practical use.
b. data independence is the ability of to make changes to data characteristics without
have to make changes to the programs that access the data. It’s important because
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller mulah11. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $3.41. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75632 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now