Development Week SQL Quiz

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

INSERT INTO Persons "LastName" in the "Persons" Table

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

SELECT * FROM Persons

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

SELECT COUNT(*) FROM Persons

Which SQL statement is used to return only different values?

SELECT DISTINCT

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 or False Question)

True

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

INSERT INTO

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

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

The NOT NULL constraint enforces a column to not accept NULL values (True/False)

True

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

UPDATE

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

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

Which operator is used to select values within a range?

BETWEEN

What is the most common type of join?

INNER JOIN

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

LIKE

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

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

SELECT FirstName FROM Persons

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

DELETE

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

DELETE FROM Persons WHERE FirstName = 'Peter'

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'

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'

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

SELECT

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

ORDER BY

What does SQL stand for?

Structured Query Language

Which SQL statement is used to create a database table called 'Customers'?

CREATE TABLE Customers

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%'

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'