So you've learned how to aggregate and join data from tables in your database—now what? How do you manipulate, transform, and make the most sense of your data? This intermediate-level course will ...

This repo contains different versions of the starter code for aa10-sql-intermediate-querying, with each version stored in a program-specific branch. To download or clone the correct branch, choose a ...

Abstract: Spark SQL is a big data processing tool for structured data query and analysis. However, due to the execution of Spark SQL, there are multiple times to write intermediate data to the disk, ...