CREATE TABLE university (school_id DECIMAL, school TEXT, location TEXT, founded DECIMAL, affiliation TEXT, enrollment DECIMAL, nickname TEXT, primary_conference TEXT)
CREATE TABLE basketball_match (team_id DECIMAL, school_id DECIMAL, team_name TEXT, acc_regular_season TEXT, acc_percent TEXT, acc_home TEXT, acc_road TEXT, all_games TEXT, all_games_percent DECIMAL, all_home TEXT, all_road TEXT, all_neutral TEXT)

What is the highest acc percent score in the competition?
SELECT acc_percent FROM basketball_match ORDER BY acc_percent DESC LIMIT 1
SELECT "acc_percent" FROM "basketball_match" ORDER BY "acc_percent" DESC NULLS LAST LIMIT 1