SQL QUIZ

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

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

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

CREATE TABLE

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

DELETE FROM Persons WHERE FirstName='Peter'

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

INSERT INTO

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

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

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

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

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

LIKE

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

ORDER BY

with SQL, how do you select all the columns form a table named "Persons"?

SELECT * FROM Persons

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

SELECT * FROM Persons ORDER FirstName DESC

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'

what is the most common type of join?

INNER JOIN?

which operator is used to select values within a range?

BETWEEN

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'

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 a column named "FirstName" from a table named "Persons"?

SELECT FirstName FROM Persons

the NOT NULL constraint enforces a column to not accept NULL values. true or false?

false

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?

TRUE