What is a LEFT OUTER JOIN?
In SQL, a LEFT OUTER JOIN is a type of join operation that combines rows from two or more tables based on a specified condition and includes unmatched rows from the left table. It allows you to retrieve data from multiple tables based on their related values. A JOIN operation combines rows from two or more tables based on a common column or columns between them. However, a regular (inner) JOIN only includes the matching rows from both tables, excluding any unmatched rows. This is where a LEFT OUTER JOIN comes in.
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