Exam (elaborations)
SNHU DAD 220 Exam 2023 With Questions and Answers
- Course
- Institution
SNHU DAD 220 Exam 2023 With Questions and Answers...
[Show more]
Content preview
SNHU DAD 220 Exam 2023 With Questions andAnswers
In Jeopardy-style online quiz you are playing the "answers" to the bonus question:
1. All non-key columns must depend on the whole primary key 2. A table with a
simple primary key is automatically in this form 3 This form does not eliminate all
redundancies - ANSWER Second normal form
Denormalization intentionally introduces redundancy by merging tables, and
therefore improves query performance. Which types of normal form tables does it
result in? Select all that apply - ANSWER First or Second form tables.
When a table is in third normal form, which of these is true? Select one. - ANSWER
All non-key columns depend on the whole primary key and on no other columns.
You are analyzing data for a new sports stats website and have access to their
databases related to the Major League Baseball games. A coworker has created the
table Attendance, which estimates the average attendance at home games next
season for franchises in each division of the National League and the American
League. - ANSWER SELECT League, Division, MAX(Average) FROM Attendance
GROUP by League, Division ORDER by League, Division
1. SELECT MIN(Year) FROM Opioid Addiction
2. SELECT MAX(Percentage) FROM Opioid Addiction
3.SELECT COUNT(*) FROM Opioid Addiction WHERE Percentage <0.04
4. SELECT AVG(Percentage) FROM Opioid Addiction - ANSWER 1.2016
2. 0.066
3. 4
4. 0.039
1. SELECT CONCAT(CITY,FRANCHISNAME) FROM ATTENDANCE WHERE
GAMEPLAYERS < 35000
2. SELECT REPLACE('ST. LOUIS','ST.','SAINT')
3. SELECT SUBSTRING('ST. LOUIS',1,3)
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 luzlinkuz. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.09. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
72042 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now