Exam (elaborations)
INSY Exam 1 Questions with Complete Solutions 2024/2025
- Course
- Institution
INSY Exam 1 Questions with Complete Solutions 2024/2025
[Show more]
Content preview
INSY Exam 1 Questions with CompleteSolutions 2024/2025
Structural Dependence - ANSWERSaccess to a file is dependent on its structure
data dependence - ANSWERSdata access changes when data storage characteristics change
one-to-many - ANSWERStake primary key from one, throw to many side
many-to-many - ANSWERSMake new table with both primary keys
one-to-one - ANSWERSone foreign key
Ternary M-to-M General Rule - ANSWERSAt least 2 chicken feet
Ternary One-to-Many - ANSWERSMany gets both primary keys from one side
Ternary M-to-M - ANSWERSwill have foreign key if there is a one side
relvar - ANSWERSVariable that holds a relation
closure - ANSWERSuse of relational algebra on existing tables to produce new relations
"current" - ANSWERSmember/customer
select - ANSWERSlists rows
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 Bensuda. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82215 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now