W3Schools SQL

What does SQL stand for?

Structured Query Language

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

OPEN
EXTRACT
GET
SELECT

SELECT

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

MODIFY
SAVE
SAVE AS
UPDATE

UPDATE

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

DELETE
COLLAPSE
REMOVE

DELETE

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

ADD NEW
ADD RECORD
INSERT INTO
INSERT NEW

INSERT INTO

With SQL, how do you select a column named "FirstName" from a table named "Persons"?

SELECT Persons.FirstName
SELECT FirstName FROM Persons
EXTRACT FirstName FROM Persons

SELECT FirstName FROM Persons

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

SELECT [all] FROM Persons
SELECT * FROM Persons
SELECT Persons
SELECT *.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='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 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 FirstName='Peter', LastName='Jackson' FROM Persons
SELECT * FROM Persons WHERE FirstName<>'Peter' AND LastName<>'Jackson'

SELECT * FROM Persons WHERE FirstName='Peter' AND LastName='Jackson'

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 BETWEEN 'Hansen' AND 'Pettersen'
SELECT LastName>'Hansen' AND LastName<'Pettersen' FROM Persons
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?

SELECT UNIQUE
SELECT DISTINCT
SELECT DIFFERENT

SELECT DISTINCT

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

SORT
SORT BY
ORDER
ORDER BY

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 BY FirstName DESC
SELECT * FROM Persons SORT 'FirstName' DESC
SELECT * FROM Persons SORT 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 VALUES ('Jimmy', 'Jackson') INTO Persons
INSERT INTO Persons VALUES ('Jimmy', 'Jackson')

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

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

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

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

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

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

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?

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

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 COUNT(*) FROM Persons
SELECT COLUMNS(*) FROM Persons
SELECT COLUMNS() FROM Persons

SELECT COUNT(*) FROM Persons

What is the most common type of join?

INNER JOIN
INSIDE JOIN
JOINED TABLE
JOINED

INNER JOIN

Which operator is used to select values within a range?

RANGE
WITHIN
BETWEEN

BETWEEN

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

False
True

True

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

FROM
GET
LIKE

LIKE

Which SQL statement is used to create a table in a database?

CREATE DATABASE TABLE
CREATE TABLE
CREATE DB
CREATE DATABASE TAB

CREATE TABLE