Types of Joints in database

In databases, the main types of joins are inner join, outer join, left join, right join, and full outer join. An inner join returns only the rows with matching values in both tables, while outer joins include rows with unmatched values. A left join returns all rows from the left table and matched rows from the right, whereas a right join does the opposite. Full outer join combines the results of both left and right joins, including all rows from both tables.