[QUIZ] Check your understanding of SQL - Part 2
Continue series What do you know about SQL? , part 2 continues with questions that revolve around basic knowledge in databases.
- Question 1: In SQL, how to insert a new record into the "Persons" table?
- INSERT INTO Persons VALUES ('Jimmy', 'Jackson')
- INSERT VALUES ('Jimmy', 'Jackson') INTO Persons
- INSERT ('Jimmy', 'Jackson') INTO Persons
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- Question 2: In SQL, how to insert the record "LastName" worth "Olsen" in the "Persons" table?
- INSERT ('Olsen') INTO Persons (LastName)
- INSERT INTO Persons ('Olsen') INTO LastName
- INSERT INTO Persons (LastName) VALUES ('Olsen')
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- Question 3: How to change "Hansen" to "Nilsen" in the "LastName" column in the "Persons" table?
- MODIFY Persons SET LastName = 'Nilsen' WHERE LastName = 'Hansen'
- UPDATE Persons SET LastName = 'Nilsen' WHERE LastName = 'Hansen'
- MODIFY Persons SET LastName = 'Hansen' INTO LastName = 'Nilsen
- UPDATE Persons SET LastName = 'Hansen' INTO LastName = 'Nilsen'
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- Question 4: In SQL, how to delete the "Peter" record from the "FirstName" column in the "Persons" table?
- DELETE FirstName = 'Peter' FROM Persons
- DELETE ROW FirstName = 'Peter' FROM Persons
- DELETE FROM Persons WHERE FirstName = 'Peter'
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- Question 5: In SQL, how to return the number of records in the "Persons" table?
- SELECT COLUMNS (*) FROM Persons
- SELECT COUNT (*) FROM Persons
- SELECT LEN (*) FROM Persons
- SELECT NO (*) FROM Persons
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- Question 6: Where is the most popular type of JOIN?
- INNER JOIN
- INSIDE JOIN
- JOINED TABLE
- JOINED
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- Question 7: Which operator is used to retrieve data in a range?
- RANGE
- BETWEEN
- WITHIN
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- Question 8: The NOT NULL constraint does not accept a null value column.
- It's correct
- False
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- Question 9: Which clauses are used to find values according to certain patterns?
- LIKE
- GET
- FROM
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- Question 10: Which SQL statement is used to create the table in the database?
- CREATE DB
- CREATE TABLE
- CREATE DATABASE TAB
- CREATE DATABASE TABLE
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