After a (too long) hiatus, DataFriday is back. The first episode of the new season was released last Friday, January 14, 2022. It focuses on defining Enterprise Architects and how they are perceived and what they really bring to the enterprise.
In this fifth episode of DataFriday, I will dig into the schema linked to each dataframe in Apache Spark. I will rename columns, create columns, and analyze the result. I […]
Following episode 3, where I talked about metadata in relational databases, this week, I am talking about metadata as found in digital photography (and specifically EXIF). Wikipedia defines EXIF as […]
In this episode, I will explain what is metadata, at least, some metadata, more specifically metadata on relational databases. It’s a quick introduction. I will also run a small Java […]
In this episode, you will learn about doing a basic ETL (extract, transform, and load) operation using Apache Spark. You will load a basic CSV file with Apache Spark, make […]
Starting today, I will host a weekly live show about data. You may join, attend “live,” and ask questions as I go through a data-oriented topic. For now, the topic […]