“I too did not want to take the path of a warrior. I believed that all that work was for nothing, and since we are all going to die what difference would it make to be a warrior? I was wrong. But I had to find that out for myself. Whenever you do realize that you are wrong, and that it certainly makes a world of difference, you can say that you are convinced. And then you can proceed by yourself. Any by yourself you may even become a man of knowledge.”
Carlos Castaneda

Journey to Ixtlan

SQL Joins

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I wish I had come across something like this when I was learning SQL:

joins-1

source

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