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

Show how many country from each country, and could you show by the bars from low to high?
SELECT Country, COUNT(Country) FROM artist GROUP BY Country ORDER BY Country
SELECT "Country", COUNT("Country") FROM "artist" GROUP BY "Country" ORDER BY "Country"