San Francisco, CA 94110
USA
How many attributes are present in the address fragment?
- 1
- 2
- 3
- 4 - ANSWER 4
The Package table has the following columns:
Weight—decimal
Description—optional variable length string
LastChangedDate—date
TrackingNumber—integer
Which column sh...
WGU - D427 - Data Management -
Applications – PreAssessment CORRECT
100%
San Francisco, CA 94110
USA
How many attributes are present in the address fragment?
-1
-2
-3
- 4 - ANSWER 4
The Package table has the following columns:
Weight—decimal
Description—optional variable length string
LastChangedDate—date
TrackingNumber—integer
Which column should be designated the primary key for the Package table?
- Weight
- Description
- LastChangedDate
- TrackingNumber - ANSWER Tracking Number
Which data type will store "2022-01-10 14:22:12" as a temporal value without loss of information?
, - DATE
- DATETIME
- DECIMAL
- BIGINT - ANSWER DATETIME
Which SQL command is an example of data definition language (DDL)?
- UPDATE
- ALTER
- SELECT
- DELETE - ANSWER CREATE, ALTER, OR DROP
How would a database engine process an update that violates a RESTRICT referential integrity
constraint?
- The offending value would be set to the database default.
- The update would be rejected by the database.
- The offending value would be changed to NULL.
- The updated value would flow to the primary key. - ANSWER The update would be rejected by the
database.
Which restriction applies when using a materialized view?
- The users of the view must provide search terms.
- The underlying data must be periodically refreshed.
- The tables referenced in the view must be indexed.
- The rows in the table must be compressed. - ANSWER The underlying data must be periodically
refreshed.
Which query illustrates performing an outer join of the Movie table with a different table?
, - SELECT M.Title, A.Actor FROM Movie M, Actor A
WHERE M.ActorID = A.ID
- SELECT M.Title, A.Actor FROM Movie M
LEFT JOIN Movie MB ON M.ID, Actor A
- SELECT M.Title, A.Actor FROM Movie M
RIGHT JOIN Actor A ON M.ActorID = A.Id
- SELECT M.Title, A.Actor FROM Movie M
INNER JOIN Actor A ON M.ActorID = A.ID - ANSWER SELECT M.Title, A.Actor FROM Movie M
LEFT JOIN Movie MB ON M.ID Actor A
Assume there are two tables, A and B.
Which rows will always be included in the result set if Table A is inner joined with Table B?
- Only rows in Tables A and B that share the join condition
- all rows in Table B
- All rows in Table A
- Only rows in Tables A and B that do not share the join condition - ANSWER Only rows in Table A and B
that share the join condition
1. Portland, OR 97212
How many attributes are present in the address fragment?
-1
-2
-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 shantelleG. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.99. You're not tied to anything after your purchase.
