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

What is the number of countries in the artist table?, I want to order by the bars in asc.
SELECT Country, COUNT(Country) FROM artist GROUP BY Country ORDER BY Country
SELECT "Country", COUNT("Country") FROM "artist" GROUP BY "Country" ORDER BY "Country" NULLS FIRST