SQL Quiz
SQL Mastery Quiz
Test your knowledge of SQL with our exciting quiz designed for enthusiasts and professionals alike. From beginner concepts to advanced queries, challenge yourself and see how much you really know!
- 20 multiple-choice questions
- Instant feedback on your answers
- Track your progress and improve your skills
SQL stands for
Structured query language
Standard query language
Strong question language
Which SQL statement is used to extract data from a database?
SELECT
EXTRACT
GET
OPEN
Which SQL statement is used to update data in a database?
MODIFY
UPDATE
SAVE
Which SQL statement is used to delete data from a database?
DELETE
COLLAPSE
REMOVE
Which SQL statement is used to insert new data in a database?
INSERT NEW
ADD RECORD
ADD NEW
INSERT INTO
With SQL, how do you select a column named "FirstName" from a table named "Persons"?
EXTRACT FirstName FROM Persons
SELECT Persons.FirstName
SELECT FirstName FROM Persons
With SQL, how do you select all the columns from a table named "Persons"?
SELECT Persons
SELECT* .Persons
SELECT [all] FROM Persons
SELECT * From Persons
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
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 ='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
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
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 * FROM Persons WHERE LastName>'Hansen' AND LastName<'Pettersen'
SELECT * FROM Persons WHERE LastName BETWEEN 'Hansen' AND 'Pettersen'
SELECT LastName>'Hansen' AND LastName<'Pettersen' FROM Persons
Which SQL statement is used to return only different values?
SELECT DISTINCT
SELECT DIFFERENT
SELECT UNIQUE
Which SQL keyword is used to sort the result-set?
SORT
SORT BY
ORDER
ORDER BY
With SQL, how can you return all the records from a table named "Persons" sorted descending by "FirstName"?
SELECT * FROM Persons ORDER FirstName DESC
SELECT * FROM Persons ORDER FirstName DESC
SELECT * FROM Persons ORDER FirstName DESC
SELECT * FROM Persons SORT 'FirstName' DESC
With SQL, how can you insert a new record into the "Persons" table?
INSERT VALUES ('Jimmy', 'Jackson') INTO Persons
INSERT INTO Persons VALUES ('Jimmy', 'Jackson')
INSERT ('Jimmy', 'Jackson') INTO Persons
With SQL, how can you insert "Olsen" as the "LastName" in the "Persons" table?
INSERT INTO Persons ('Olsen') INTO LastName
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='Nilsen' WHERE LastName='Hansen'
UPDATE Persons SET LastName='Hansen' INTO LastName='Nilsen'
MODIFY Persons SET LastName='Nilsen' WHERE LastName='Hansen'
MODIFY Persons SET LastName='Hansen' INTO LastName='Nilsen
With SQL, how can you delete the records where the "FirstName" is "Peter" in the Persons Table?
DELETE ROW FirstName='Peter' FROM Persons
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 COLUMNS(*) FROM Persons
SELECT LEN(*) FROM Persons
SELECT NO(*) FROM Persons
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