It's a friendly metaphor, not real coffee. Each "coffee" is €5 and you can buy as many you like.
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About Romain Granger
The greatest feeling is knowing that my data expertise can help others, especially in the use of SQL and BigQuery, both of which are widely used in the data sector.
I write articles on Medium, and you can support me by buying me a cup of coffee if you want to!
Thank you kindly.
Romain
