WGU C170 - Quiz 4
QUESTIONS AND VERIFED
CORRECT ANSWER GRADED
A+ LATEST 2026-2027 100%
GUARANTEED PASS
Which of the following is a feature of a correlated subquery? - CORRECT ANSWER-The outer
subquery initiates the process of execution in a subquery.
In a subquery, the _____ query is executed first. - CORRECT ANSWER-inner
When using a subquery, the output of a(n) ________ query is used as the input for the outer
query. - CORRECT ANSWER-inner
The __________ clause is used to restrict the output of a GROUP BY query by applying a
conditional criteria to the grouped rows. - CORRECT ANSWER-HAVING
The IN subquery uses a(n) _____________ operator. - CORRECT ANSWER-equality
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
, A(n) ____________ subquery is a subquery that executes once for each row in the outer query.
- CORRECT ANSWER-correlated
In the context of SELECT subquery types, a _____ is returned when an UPDATE subquery is
used. - CORRECT ANSWER-single value
When using the Oracle TO_DATE function, the code _____ represents a three-letter month
name. - CORRECT ANSWER-MON
The Oracle _____ function returns the current date. - CORRECT ANSWER-SYSDATE
In Oracle, the _____ function converts a date to a character string. - CORRECT ANSWER-
TO_CHAR()
The Oracle string concatenation operator is _____. - CORRECT ANSWER-||
_____ is a string function that returns the number of characters in a string value. - CORRECT
ANSWER-LENGTH
When using the Oracle TO_NUMBER function to convert a character string into a number, _____
represents a digit. - CORRECT ANSWER-9
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
Oracle uses the _________ function to extract the various parts of a date. - CORRECT ANSWER-
TO_CHAR
QUESTIONS AND VERIFED
CORRECT ANSWER GRADED
A+ LATEST 2026-2027 100%
GUARANTEED PASS
Which of the following is a feature of a correlated subquery? - CORRECT ANSWER-The outer
subquery initiates the process of execution in a subquery.
In a subquery, the _____ query is executed first. - CORRECT ANSWER-inner
When using a subquery, the output of a(n) ________ query is used as the input for the outer
query. - CORRECT ANSWER-inner
The __________ clause is used to restrict the output of a GROUP BY query by applying a
conditional criteria to the grouped rows. - CORRECT ANSWER-HAVING
The IN subquery uses a(n) _____________ operator. - CORRECT ANSWER-equality
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
, A(n) ____________ subquery is a subquery that executes once for each row in the outer query.
- CORRECT ANSWER-correlated
In the context of SELECT subquery types, a _____ is returned when an UPDATE subquery is
used. - CORRECT ANSWER-single value
When using the Oracle TO_DATE function, the code _____ represents a three-letter month
name. - CORRECT ANSWER-MON
The Oracle _____ function returns the current date. - CORRECT ANSWER-SYSDATE
In Oracle, the _____ function converts a date to a character string. - CORRECT ANSWER-
TO_CHAR()
The Oracle string concatenation operator is _____. - CORRECT ANSWER-||
_____ is a string function that returns the number of characters in a string value. - CORRECT
ANSWER-LENGTH
When using the Oracle TO_NUMBER function to convert a character string into a number, _____
represents a digit. - CORRECT ANSWER-9
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
Oracle uses the _________ function to extract the various parts of a date. - CORRECT ANSWER-
TO_CHAR
