Introduction to SQL
Which is the subset of SQL commands used to manipulate Oracle Database structures, including tables?

Data Manipulation Language(DML)
Data Definition Language(DDL)
None
Both of above

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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 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;
SELECT city, temperature, humidity, country FROM location;

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