SQL Confusion
I am practicing SQL and keep getting errors when I join two tables. The tables look correct to me, but sometimes the results show repeated rows or miss information. I have tried changing the JOIN type, but I am not fully sure why each result changes. I searched for Database assignment help, but I mostly need help understanding the logic behind joins. How do you check whether your table relationships are correct? Is there a simple way to practice INNER JOIN and LEFT JOIN without getting lost? Any beginner tips would be very useful.
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