Question

I have a table with the fileds

Table Name:
CountriesInfo

country | continent
--------|----------
India   | Asia
China   | Asia
Ireland | Europe
England | Europe

1. User will select a country
2. System should display all other countries which are in the same continent of the selected country
   I want to use JOINS only (not subqueries). Is there a way to get?

Answer 1

try this:

You can join with the same table and get result:

select C.country
from   CountriesInfo C 
join
    (select *
     from  CountriesInfo
     where country='India')a
on C.continent=a.continent

SQL Fiddle Demo