Query the two cities in STATION with the shortest and longest CITY names, as well as their respective lengths (i.e.: number of characters in the name). If there is more than one smallest or largest ...
In this repository, we have SQL problems for practice from beginner level to advanced level using a fictitious database 'Worldwide importers'. I learned SQL under Udacity Introduction to Data Science ...
Learning SQL is a great move for anyone working with data, but actually getting good at it can feel tricky, especially if you don’t have a database handy. Luckily, there are tons of free places online ...
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