CREATE TABLE music_festival (ID INT, Music_Festival TEXT, Date_of_ceremony TEXT, Category TEXT, Volume INT, Result TEXT)
CREATE TABLE volume (Volume_ID INT, Volume_Issue TEXT, Issue_Date TEXT, Weeks_on_Top FLOAT, Song TEXT, Artist_ID INT)
CREATE TABLE artist (Artist_ID INT, Artist TEXT, Age INT, Famous_Title TEXT, Famous_Release_date TEXT)

Show me the total number by category in a histogram, and order in asc by the names please.
SELECT Category, COUNT(*) FROM music_festival GROUP BY Category ORDER BY Category
SELECT "Category", COUNT(*) FROM "music_festival" GROUP BY "Category" ORDER BY "Category" NULLS FIRST