Introduction to SQL
Find the name of all cities with their temperature, humidity and countries.

SELECT city, temperature, humidity, country FROM location;
SELECT weather.city, temperature, humidity, country FROM weather, location;
SELECT weather.city, temperature, humidity FROM weather SELECT country FROM location WHERE weather.city = location.city;
SELECT weather.city, temperature, humidity, country FROM weather, location WHERE weather.city = location.city;

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Introduction to SQL
What is a view?

A view is a virtual table which results of executing a pre-compiled query. A view is not part of the physical database schema, while the regular tables are.
None of these
A view is a special stored procedure executed when certain event occurs.
A view is a database diagram.

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