CREATE TABLE exhibition_record (Exhibition_ID INT, Date TEXT, Attendance INT)
CREATE TABLE artist (Artist_ID INT, Name TEXT, Country TEXT, Year_Join INT, Age INT)
CREATE TABLE exhibition (Exhibition_ID INT, Year INT, Theme TEXT, Artist_ID INT, Ticket_Price FLOAT)

Compare all countries with a bar chart, and sort how many country in asc order.
SELECT Country, COUNT(Country) FROM artist GROUP BY Country ORDER BY COUNT(Country)
SELECT "Country", COUNT("Country") FROM "artist" GROUP BY "Country" ORDER BY COUNT("Country") NULLS FIRST