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Question 1

2 type of data storage

Answer 1

The main type of data storage are HDDs and SSDs for personal computers

Question 2

What is SQL

Answer 2

SQL or structured Query language, is a programming language used for managing database, allowing efficient handling data store in table through clear syntax

Question 3

example of SQL ORDER BY
With example

Answer 3

order by sort result in ascending order or descending order

For example sort customer by name

SELECT * FROM Customer ORDER BY Name;

Question 4

example of SQL WHERE
With example

Answer 4

WHERE: It filter data based on the condition

For example: Find These customer who are in NEW YORK

SELECT * FROM customer WHERE city = “New York”;

Question 5

example of SQL Logical Operators (AND,OR,NOT)
With example

Answer 5

Logical operator, It combines condition for complex search

For example: find customer who is over the age of 25 in NEW YORK

SELECT * FROM Customer WHERE Age > 25 AND City = “New York”;