CREATE TABLE submission (submission_id DECIMAL, scores DECIMAL, author TEXT, college TEXT)
CREATE TABLE acceptance (submission_id DECIMAL, workshop_id DECIMAL, result TEXT)
CREATE TABLE workshop (workshop_id DECIMAL, date TEXT, venue TEXT, name TEXT)

What is the author of the submission with the highest score?
SELECT author FROM submission ORDER BY scores DESC LIMIT 1
SELECT "author" FROM "submission" ORDER BY "scores" DESC NULLS LAST LIMIT 1