The notebooks in the datasets directory contain code to automatically download and preprocess the datasets. After running these notebooks, the processed training and test data will be saved as Parquet ...

Query all columns for all American cities in the CITY table with populations larger than 100000. The COUNTRYCODE for America is USA.

Getting good at SQL for interviews can feel like a puzzle. You know the basics, but putting them together in a way that impresses people is another thing entirely. Luckily, there are great tools out ...