Get your own SQL server

SQL Statement:

Result:

 count |   country
-------+-------------
     3 | Argentina
     5 | Spain
     2 | Switzerland
     3 | Italy
     4 | Venezuela
     2 | Belgium
     1 | Norway
     2 | Sweden
    13 | USA
    11 | France
     5 | Mexico
     9 | Brazil
     2 | Austria
     1 | Poland
     7 | UK
     1 | Ireland
    11 | Germany
     2 | Denmark
     3 | Canada
     2 | Finland
     2 | Portugal
(21 rows)
Demo Database:

categories
customers
products
orders
order_details
testproducts