Free Back-End Development Technical (SQL) Questions and Answers

Question 1

What exactly does SQL mean?

Accepted Answer

Structured Query Language

Answer

Structured Question Language

Answer

Strong Question Language

Question 2

Which SQL command is employed to retrieve data from a database?

Accepted Answer

Select

Answer

Extract

Answer

Open

Answer

Get

Question 3

How does one update data in a database using SQL?

Accepted Answer

Update

Answer

Save AS

Answer

Save as

Answer

Modify

Question 4

How do you delete data from a database using SQL?

Accepted Answer

DELETE

Answer

COLLAPSE

Answer

REMOVE

Question 5

Which SQL statement is employed when new data is to be added to a database?

Accepted Answer

Insert Into

Answer

Add New

Answer

Insert New

Answer

Add Record

Question 6

How do you use SQL to choose the "FirstName" column from the "Persons" table?

Accepted Answer

SELECT FirstName FROM Persons

Answer

EXTRACT FirstName FROM Persons

Answer

SELECT Persons.FirstName

Question 7

How do you use SQL to select every column from the "Persons" table?

Accepted Answer

SELECT * FROM Persons

Answer

SELECT *.Persons

Answer

SELECT Persons

Answer

SELECT [all] FROM Persons