Learn how to use an ETL tool to load data from a CSV file into a database. Follow these four steps: choose the right ETL tool, prepare the CSV file, define the ETL workflow, and test and monitor ...

To read in the file with base R, I’d first unzip the flight delay file and then import both flight delay data and the code lookup file with read.csv().

I have a data set of daily cycling trips from the Boston area’s bicycle-share system. If you’d like to follow along, you can download the CSV file from the link at the bottom of this article.