Introduction to SQL
A view is which of the following?

A base table that can be accessed via SQL commands
A base table that cannot be accessed via SQL commands
A virtual table that can be accessed via SQL commands
A virtual table that cannot be accessed via SQL commands

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

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