Introduction to SQL
The wildcard in a WHERE clause is useful when?

An exact match is necessary in a CREATE statement.
An exact match is not possible in a CREATE statement.
An exact match is necessary in a SELECT statement.
An exact match is not possible in a SELECT statement.

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

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

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Introduction to SQL
Find the names of these cities with temperature and condition whose condition is neither sunny nor cloudy

SELECT city, temperature, condition FROM weather WHERE condition BETWEEN ('sunny', 'cloudy');
SELECT city, temperature, condition FROM weather WHERE condition NOT BETWEEN ('sunny', 'cloudy');
SELECT city, temperature, condition FROM weather WHERE condition IN ('sunny', 'cloudy');
SELECT city, temperature, condition FROM weather WHERE condition NOT IN ('sunny', 'cloudy');

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Introduction to SQL
Find all the tuples having temperature greater than 'Paris'.

SELECT * FROM weather WHERE temperature > (SELECT * FROM weather WHERE city = 'Paris')
SELECT * FROM weather WHERE temperature > 'Paris' temperature
SELECT * FROM weather WHERE temperature > (SELECT temperature FROM weather WHERE city = 'Paris')
SELECT * FROM weather WHERE temperature > (SELECT city FROM weather WHERE city = 'Paris')

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