Oracle: Difference between Natural join and Inner Join

we have two tables Stu and marks as shown below:

Stu table:

natural join vs inner join

marks table:

natural join vs inner join

Now, follow the the points to understand difference between Natural Join and Inner Join:

CHARACTERISTICS	NATURAL JOIN	INNER JOIN
Syntax	Select Column from Table_Name Table1 Natural Join Table2;	Select Column from Table_Name Table1 Inner Join Table2 on Table1.Column=Table2.Column;
Common Columns	In Natural Join, there is no need to mention the common columns. The tables are joined considering the column on basis of name and datatype.	In Inner join, there is a need to explicitly mention the common columns specified on ON Clause.
Duplicates	In Natural join, when we execute a query, there is never a duplicate entry given to common columns.	In Inner join, we always have a duplicate entry given to a common column.
Example	select * from Stu natural Join marks;	select * from Stu s inner join marks m on s.Roll_no=m.Roll_no;

Output of NATURAL JOIN

Output of INNER JOIN