What is the difference in using inner join and outer joins?

Inner join : An inner join (sometimes called a "simple join") is a
join of two or more tables that returns only those rows that satisfy the join condition.


Outer Joins : An outer join extends the result of a simple join. An
outer join returns all rows that satisfy the join condition and also returns some or all of those rows from one table for which no rows from the other satisfy the join condition

Inner join:  It is is the most common type of join. Inner joins return all rows from multiple tables where the join condition is met.

Outerjoin:  This type of join returns all rows from one table and only those rows from a secondary table where the joined fields are equal (join condition is met).Here a (+) operator is uses for additional information of given table.