Explanation of INNER JOIN and OUTER JOIN in MySQL

In MySQL, the focus keyword difference between INNER JOIN and OUTER JOIN is how they handle unmatched rows between the tables being joined.

INNER JOIN:

An INNER JOIN in MySQL returns rows from both tables that have matching values based on the specified condition. If there is no match found, those rows are not included in the result set.

OUTER JOIN:

On the other hand, an OUTER JOIN in MySQL includes all rows from at least one of the tables being joined, even if there is no matching value in the other table. There are different types of OUTER JOINs such as LEFT JOIN, RIGHT JOIN, and FULL JOIN, which determine how unmatched rows are handled.

Understanding the distinction between INNER JOIN and OUTER JOIN is crucial in crafting efficient and accurate database queries in MySQL.