CREATE TABLE player (pid DECIMAL, pname TEXT, ycard TEXT, hs DECIMAL)
CREATE TABLE tryout (pid DECIMAL, cname TEXT, ppos TEXT, decision TEXT)
CREATE TABLE college (cname TEXT, state TEXT, enr DECIMAL)

Find the name of different colleges involved in the tryout in alphabetical order.
SELECT DISTINCT cname FROM tryout ORDER BY cname
SELECT DISTINCT "cname" FROM "tryout" ORDER BY "cname" NULLS FIRST