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hey there, can you please explain why we need the below part and how it works: "WHERE code = w.code AND power = w.power" inside the subquery.
I have never seen a use case like this,so needed to learn when to use this way.
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Ollivander's Inventory
You are viewing a single comment's thread. Return to all comments →
hey there, can you please explain why we need the below part and how it works: "WHERE code = w.code AND power = w.power" inside the subquery.
I have never seen a use case like this,so needed to learn when to use this way.