WGU C170 with a Focused on Advanced SQL Exam Questions and verified Answers 2024/2025
6 views 0 purchase
Module
WGU 170
Institution
WGU 170
WGU C170 with a Focused on Advanced SQL Exam Questions and verified Answers 2024/2025
............ is a relational set operator. - correct answer MINUS
The ............ statement can be used to combine rows from two queries, returning only the rows that appear in both sets. - correct answer I...
wgu c170 with a focused on advanced sql exam quest
Written for
WGU 170
WGU 170
Seller
Follow
KieranKent55
Reviews received
Content preview
WGU C170 with a Focused on Advanced SQL
Exam Questions and verified Answers
2024/2025
............ is a relational set operator. - correct answer MINUS
The ............ statement can be used to combine rows from two queries, returning only
the rows that appear in both sets. - correct answer INTERSECT
If a designer wishes to create an inner join, but the two tables do not have a commonly
named attribute, he can use a(n) ............ clause. - correct answer JOIN ON
The syntax of the MINUS statement in Oracle is ............. - correct answer query
MINUS query
The use of the ............ operator allows you to compare a single value with a list of
values returned by the first subquery (sqA) using a comparison operator other than
EQUALS. - correct answer ALL
The ............ operator could be used in place of INTERSECT if the DBMS does not
support it. - correct answer IN
The syntax of the DECODE function is ............. - correct answer DECODE(expression,
search, result [, search, result]...[, default])
Assume you are using the UNION ALL operator to combine the results from two tables
with identical structure, CUSTOMER and CUSTOMER_2. The CUSTOMER table
contains 10 rows, while the CUSTOMER_2 table contains 7 rows. Customers Duanne
and Olowski are included in the CUSTOMER table as well as in the CUSTOMER_2
table. How many records are returned when using the UNION ALL operator? - correct
answer 17
, A(n) ............ subquery is a subquery that executes once for each row in the outer query.
- correct answer correlated
Which of the following is a feature of a correlated subquery? - correct answer The
outer subquery initiates the process of execution in a subquery.
............ is a string function that returns the number of characters in a string value. -
correct answer LENGTH
Assume you are using the INTERSECT operator to combine the results from two tables
with identical structure, CUSTOMER and CUSTOMER_2. The CUSTOMER table
contains 10 rows, while the CUSTOMER_2 table contains 7 rows. Customers Duanne
and Olowski are included in the CUSTOMER table as well as in the CUSTOMER_2
table. How many records are returned when using the INTERSECT operator? - correct
answer 2
When using the Oracle TO_NUMBER function to convert a character string into a
number, ............ represents a digit. - correct answer 9
In Oracle, the ............ function converts a date to a character string. - correct answer
TO_CHAR()
The ............ data type is compatible with NUMBER. - correct answer SMALLINT
When using the Oracle TO_DATE function, the code ............ represents a three-letter
month name. - correct answer MON
The Oracle ............ function compares an attribute or expression with a series of values
and returns an associated value or a default value if no match is found. - correct
answer DECODE
In a subquery, the ............ query is executed first. - correct answer inner
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 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 KieranKent55. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £8.57. You're not tied to anything after your purchase.
