Joins — You Need to Know Them.

You may not like them but they’ll always be around for you.

Photo by Laura Ockel on Unsplash

Where ever you go, data is every where. Look at your car dashboard. It is a dashboard of data. It tells you your speed, mileage and gas in a few simple visuals. Go to a cash register and it tells you how much you have to pay. Go to work and you may be confronted with spreadsheets. Data is everywhere and to…