CREATE TABLE plays_games (stuid NUMBER, gameid NUMBER, hours_played NUMBER)
CREATE TABLE sportsinfo (stuid NUMBER, sportname CLOB, hoursperweek NUMBER, gamesplayed NUMBER, onscholarship CLOB)
CREATE TABLE student (stuid NUMBER, lname CLOB, fname CLOB, age NUMBER, sex CLOB, major NUMBER, advisor NUMBER, city_code CLOB)
CREATE TABLE video_games (gameid NUMBER, gname CLOB, gtype CLOB)

What are ids and total number of hours played for each game?
SELECT gameid, SUM(hours_played) FROM plays_games GROUP BY gameid
SELECT "gameid", SUM("hours_played") FROM "plays_games" GROUP BY "gameid"