WGU D427 DATA MANAGEMENT APPLICATIONS OA EXAM

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WGU D427 DATA MANAGEMENT APPLICATIONS OA EXAM

MULTIPLE CHOICE ALL 250 QUESTIONS AND VERIFIED

CORRECT ANSWERS LATEST 2024| JUST RELAESED

With SQL, how do you select all the records from a table named "Persons" where the value of the column "FirstName" starts with an "a"?

• SELECT * FROM Persons WHERE FirstName LIKE '%a'
• SELECT * FROM Persons WHERE FirstName='%a%'
• SELECT * FROM Persons WHERE FirstName='a'
• SELECT * FROM Persons WHERE FirstName LIKE 'a%'
• SELECT * FROM Persons WHERE FirstName LIKE 'a%'

The OR operator displays a record if ANY conditions listed are true. The AND operator displays a record if ALL of the conditions listed are true.

• True
• False
• True

With SQL, how do you select all the records from a table named "Persons" where the "FirstName" is "Peter" and the "LastName" is "Jackson"?

• SELECT * FROM Persons WHERE FirstName<>'Peter' AND LastName<>'Jackson'
• SELECT * FROM Persons WHERE FirstName='Peter' AND LastName='Jackson'
• SELECT FirstName='Peter', LastName='Jackson' FROM Persons
• SELECT * FROM Persons WHERE FirstName='Peter' AND LastName='Jackson' 1 / 4

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With SQL, how do you select all the records from a table named "Persons" where the "LastName" is alphabetically between (and including) "Hansen" and "Pettersen"?

• SELECT LastName>'Hansen' AND LastName<'Pettersen' FROM Persons
• SELECT * FROM Persons WHERE LastName BETWEEN 'Hansen' AND 'Pettersen'
• SELECT * FROM Persons WHERE LastName>'Hansen' AND LastName<'Pettersen'
• SELECT * FROM Persons WHERE LastName BETWEEN 'Hansen' AND 'Pettersen'

Which SQL statement is used to return only different values?

A) SELECT DIFFERENT

B) SELECT DISTINCT

C) SELECT UNIQUE

B) SELECT DISTINCT

Which SQL keyword is used to sort the result-set?

A) SORT

B) ORDER BY

C) SORT BY

D) ORDER

B) ORDER BY

With SQL, how can you return all the records from a table named "Persons" sorted descending by "FirstName"?

• SELECT * FROM Persons SORT BY 'FirstName' DESC
• SELECT * FROM Persons SORT 'FirstName' DESC 2 / 4

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• SELECT * FROM Persons ORDER FirstName DESC
• SELECT * FROM Persons ORDER BY FirstName DESC
• SELECT * FROM Persons ORDER BY FirstName DESC

With SQL, how can you insert a new record into the "Persons" table?

• INSERT ('Jimmy', 'Jackson') INTO Persons
• INSERT INTO Persons VALUES ('Jimmy', 'Jackson')
• INSERT VALUES ('Jimmy', 'Jackson') INTO Persons
• INSERT INTO Persons VALUES ('Jimmy', 'Jackson')

With SQL, how can you insert "Olsen" as the "LastName" in the "Persons" table?

• INSERT INTO Persons ('Olsen') INTO LastName
• INSERT INTO Persons (LastName) VALUES ('Olsen')
• INSERT ('Olsen') INTO Persons (LastName)
• INSERT INTO Persons (LastName) VALUES ('Olsen')

How can you change "Hansen" into "Nilsen" in the "LastName" column in the Persons table?

• UPDATE Persons SET LastName='Hansen' INTO LastName='Nilsen'
• MODIFY Persons SET LastName='Nilsen' WHERE LastName='Hansen'
• UPDATE Persons SET LastName='Nilsen' WHERE LastName='Hansen'
• MODIFY Persons SET LastName='Hansen' INTO LastName='Nilsen
• UPDATE Persons SET LastName='Nilsen' WHERE LastName='Hansen'

With SQL, how can you delete the records where the "FirstName" is "Peter" in the Persons Table?

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• DELETE FirstName='Peter' FROM Persons
• DELETE FROM Persons WHERE FirstName = 'Peter'
• DELETE ROW FirstName='Peter' FROM Persons
• DELETE FROM Persons WHERE FirstName = 'Peter'

With SQL, how can you return the number of records in the "Persons" table?

• SELECT COUNT(*) FROM Persons
• SELECT LEN(*) FROM Persons
• SELECT NO(*) FROM Persons
• SELECT COLUMNS(*) FROM Persons
• SELECT COUNT(*) FROM Persons

What is the most common type of join?

A) INNER JOIN

B) INSIDE JOIN

C) JOINED TABLE

D) JOINED

A) INNER JOIN

Which operator is used to select values within a range?

A) RANGE

B) WITHIN

C) BETWEEN

• BETWEEN
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