This advanced SQL exercise is part of the book: Advanced SQL – Practical Techniques and Use-Cases, which includes 100 day-to-day SQL challenges (and solutions), need-to-know advanced features, and key concepts.

The Israeli travel company “World’s Wonders” uses the following tables to manage its data:
Customers table – This table contains information about the company’s various customers.

CREATE TABLE persons   
(person_id int identity(1,1),   
person_name  varchar(25))  

Destination table – Israel: This table contains information about the various travel destinations where the company’s customers travelled in Israel.

CREATE TABLE locations_israel   
(person_id int,   
location varchar(25))  


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