WGU D427 Final Exam (New 2026/ 2027 Update) Data Management – Applications Review| Questions & Answers| Grade A| 100% Correct (Verified Solutions)

WGUl D427l Finall Examl (Newl 2026/l 2027l
Update)l Datal Managementl –l Applicationsl
Review|l Questionsl &l Answers|l Gradel A|l
100%l Correctl (Verifiedl Solutions)

QUESTION
ORDERl BY

Answer:
SELECTl column_name(s)
FROMl table_name
ORDERl BYl column_namel [ASC|DESC]



QUESTION
SELECTl DISTINCT

Answer:
SELECTl DISTINCTl column_name(s)
FROMl table_name



QUESTION
SUM
addl upl alll costsl inl thel bookl table

Answer:
SELECTl SUMl (Cost)
FROMl Book;



QUESTION
UPDATE
Modifyl existingl datal inl al table

Answer:

,UPDATEl table_name
SETl column1=value,l column2=value,...
WHEREl some_column=some_value

UPDATEl Book
SETl Costl =l Costl +l 10
WHEREl Costl >l 100;



QUESTION
positivel decimall valuel representingl al balancel ofl upl tol $24,999,l withl 2l digits

Answer:
AccountBalancel DECIMAL(7,2)l UNSIGNEDl (positivel value)
CHECKl (AccountBalancel <l =l 24999.99)



QUESTION
Relationshipl maximum

Answer:
Relationshipl maximuml isl thel greatestl numberl ofl instancesl ofl onel entityl thatl canl relatel
tol al singlel instancel ofl anotherl entity.



QUESTION
Relationshipl minimum

Answer:
thel leastl numberl ofl instancesl ofl onel entityl thatl canl relatel tol al singlel instancel ofl
anotherl entity



QUESTION
CONCAT

Answer:
Joinsl twol orl morel arrays,l andl returnsl al copyl ofl thel joinedl arrays

, QUESTION
Pulll outl anyl ordersl withl matchingl customerl informationl andl returnl thel Streamingl IDl
andl Customerl Name.

Answer:
SELECTl Orders.StreamID,l Customers.CustName
FROMl Orders
INNERl JOINl Customers
ONl Orders.CustIDl =l Customers.CustID;



QUESTION
Pulll outl alll customersl andl anyl ordersl theyl placedl andl returnl thel Streamingl ID,l
Customerl Name,l Productl ID.l Sortl thel datal alphabeticallyl byl customerl name.

Answer:
SELECTl Orders.StreamID,l Customers.CustName,l Orders.ProdID
FROMl Orders
RIGHTl JOINl Customers
ONl Orders.CustIDl =l Customers.CustID
ORDERl BYl Customers.CustNamel ASC;



QUESTION
Pulll outl alll ordersl andl alll customersl andl returnl thel Streamingl ID,l Customerl Name,l andl
Productl ID.

Answer:
SELECTl Orders.StreamID,l Customers.CustName,l Orders.ProdID
FROMl Orders
FULLl JOINl Customers
ONl Orders.CustIDl =l Customers.CustID
ORDERl BYl Customers.CustName;



QUESTION
Writel al queryl tol displayl thel customerl name,l orderl date,l andl streamingl IDl forl alll
customers.

Answer:
SELECTl Customers.CustName,l Orders.OrderDate,l Orders.StreamID