ProTechSolution - E-Learning System

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

SELECT * FROM Persons ORDER BY FirstName DESC

SELECT * FROM Persons ORDER FirstName DESC

SELECT * FROM Persons SORT 'FirstName' DESC

SELECT * FROM Persons SORT BY 'FirstName' DESC

2. 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 LIKE 'a%'

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

3. 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

Depends on the database

Only in MySQL

4. Which SQL statement is used to delete data from a database?

COLLAPSE

REMOVE

DELETE

DROP

5. The NOT NULL constraint enforces a column to not accept NULL values.

True

False

Depends on the table

Only for Primary Keys

6. 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'

7. With SQL, how do you select all the records from a table named 'Persons' where the 'FirstName' is 'Peter' and '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' OR LastName='Jackson'

8. 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

ADD INTO Persons ('Jimmy', 'Jackson')

9. What is the primary key?

A key used to encrypt the database

A unique identifier for a record

The first column in a table

A password

10. Which operator is used to search for a specified pattern in a column?

LIKE

GET

PATTERN

SEARCH

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

DELETE FROM Persons WHERE FirstName = 'Peter'

DELETE FirstName='Peter' FROM Persons

DELETE ROW FirstName='Peter' FROM Persons

DROP FROM Persons WHERE FirstName='Peter'

12. What does SQL stand for?

Strong Question Language

Structured Query Language

Structured Question Language

Simple Query Language

13. Which operator is used to select values within a range?

BETWEEN

RANGE

WITHIN

IN

14. With SQL, how do you select a column named 'FirstName' from a table named 'Persons'?

EXTRACT FirstName FROM Persons

SELECT FirstName FROM Persons

SELECT Persons.FirstName

GET FirstName FROM Persons

15. With SQL, how do you select all the records from a table named 'Persons' where the value of the column 'FirstName' is 'Peter'?

SELECT * FROM Persons WHERE FirstName='Peter'

SELECT [all] FROM Persons WHERE FirstName LIKE 'Peter'

SELECT * FROM Persons WHERE FirstName<>'Peter'

SELECT * FROM Persons WHERE FirstName='Peter'

16. Which SQL statement is used to insert new data in a database?

INSERT INTO

ADD NEW

ADD RECORD

INSERT NEW

17. Which SQL statement is used to extract data from a database?

EXTRACT

SELECT

GET

OPEN

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

ORDER BY

SORT BY

ORDER

SORT

19. Which SQL statement is used to update data in a database?

SAVE

UPDATE

MODIFY

SAVE AS

20. With SQL, how do you select all the columns from a table named 'Persons'?

SELECT [all] FROM Persons

SELECT Persons

SELECT * FROM Persons

SELECT *.Persons

MySQL Certification Quiz