Question: what is difference between using right outer join, left outer join, inner join. example : select *from course right outer join prereq on course.course_id =

what is difference between using

  1. right outer join,
  2. left outer join,
  3. inner join.

example :

select *from course right outer join prereq on course.course_id = prereq.course_id;

select *from course left outer join prereq on course.course_id = prereq.course_id;

select *from course inner join prereq on course.course_id = prereq.course_id;

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