Following is the comparison between the Inner Join and Outer Join Based on some parameters:
Comparison
Inner Join
Outer Join
DB(Database)
The size of the database returned by Inner Join is smaller than the Outer Join
This returns a comparatively larger database.
Types
No Type
Left Outer Join, Right Outer Join and Full Outer Join
Fundamental
Inner Join returns only the matching rows from both the table.
This returns all the rows from both the tables.
For detailed information, you can refer to this: Inner Join vs Outer Join