Of all the divisions in the world, what percentage of them belong to England?
DIVIDE(COUNT(division where country = 'England'), COUNT(division)) as percentage;
SELECT CAST(COUNT(CASE WHEN country = 'England' THEN division ELSE NULL END) AS REAL) * 100 / COUNT(division) FROM divisions
CREATE TABLE divisions
(
    division TEXT not null
        primary key,
    name     TEXT,
    country  TEXT
);
CREATE TABLE matchs
(
    Div      TEXT,
    Date     DATE,
    HomeTeam TEXT,
    AwayTeam TEXT,
    FTHG     INTEGER,
    FTAG     INTEGER,
    FTR      TEXT,
    season   INTEGER,
    foreign key (Div) references divisions(division)
);
