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Costa Rica and Ethiopia After a while in the company, playing with the database and writing business reports, a day, you encounter an issue. In the...
One month and everything is fine... unless? After your last misadventure with Bob, you learn to be careful with Isolation in your transaction. Times...
A brand new job Imagine you are a brand new Data Analyst at The Coffee Company. Like every Data Analyst, you know SQL well and are in charge of...
Introduction Today we are going to see a really important concept when working with data and how you represent data. We are going to talk about Pivot...
Introduction As a coffee lover and a bit of a developer, I decided to create some data manipulation using a dataset on Coffees Reviews I found online...