What Is LEFT JOIN in SQL? | LearnSQL.com
https://learnsql.com/blog/what-is-left-join-sql/
WebJan 13, 2021 · LEFT JOIN Explained. LEFT JOIN, also called LEFT OUTER JOIN, returns all records from the left (first) table and the matched records from the right (second) table. If there is no match for a specific record, you’ll get NULLs in the corresponding columns of the right table. Let’s see how it works with the customers and orders example ...
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