Question

There are two tables A and B. You are retreiving data from both tables where all rows from B table and only matching rows from A table should be displayed. Which of the following types of joins will you apply between A and B tables?

- Inner join
- Left outer join
- Right outer join
- Self join

Answer 1

Use left outer hoin or right outer join.

For example, the following satisfy your requirement.

select * from tableB
Left outer join tableA
on tableB.ID= tableA.ID

Or

select * from tableA
Right outer join tableB
on tableA.ID= tableB.ID

Better way to understand: