SQL Beginner Interview Questions-Writing Queries

The Test Lead
2 min readNov 20, 2023

These queries cover a range of basic operations and can serve as a good starting point for entry-level interview preparation. Make sure to understand the logic behind each query and practice writing them on your own.

These are tables you can use as a reference

Retrieve all columns from a table named Customers.

SELECT * FROM Customers;

Retrieve the names and ages of all customers.

SELECT Name, Age FROM Customers;

Find the total number of customers.

SELECT COUNT(*) FROM Customers;

Retrieve unique cities from the Customers table

SELECT DISTINCT City FROM Customers;

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The Test Lead
The Test Lead

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