Dludora/DAIL-BIRD huggingface dataset:
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: What is the percentage of people whose age greater than 24 and participate in winter season? DIVIDE(COUNT(season = 'Winter' and age > 24), COUNT(person_id)) as percentage; */
SELECT 
SELECT CAST(COUNT(CASE WHEN T2.age > 24 AND T1.season = 'Winter' THEN 1 ELSE NULL END) AS REAL) * 100 / COUNT(T2.games_id) FROM games AS T1 INNER JOIN games_competitor AS T2 ON T1.id = T2.games_id
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: What is the region id of Christine Jacoba Aaftink? */
SELECT 
SELECT T1.region_id FROM person_region AS T1 INNER JOIN person AS T2 ON T1.person_id = T2.id WHERE T2.full_name = 'Christine Jacoba Aaftink'
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: Mention the height of people who belong to region id 7. */
SELECT 
SELECT T2.height FROM person_region AS T1 INNER JOIN person AS T2 ON T1.person_id = T2.id WHERE T1.region_id = 7
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: State the name of the city that held game id 3. name of city refers to city_name */
SELECT 
SELECT T2.city_name FROM games_city AS T1 INNER JOIN city AS T2 ON T1.city_id = T2.id WHERE T1.games_id = 3
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: What are the id of the games held in London? London refers to city_name = 'London'; */
SELECT 
SELECT T1.games_id FROM games_city AS T1 INNER JOIN city AS T2 ON T1.city_id = T2.id WHERE T2.city_name = 'London'
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: How many people who are below 30 and participated in the summer season? people who are below 30 refer to person_id where age < 30; the summer season refers to season = 'Summer'; */
SELECT 
SELECT COUNT(T2.person_id) FROM games AS T1 INNER JOIN games_competitor AS T2 ON T1.id = T2.games_id WHERE T1.season = 'Summer' AND T2.age < 30
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: List out the name of the game that the people participated in games id 13. name of games refers to games_name; */
SELECT 
SELECT DISTINCT T1.games_name FROM games AS T1 INNER JOIN games_competitor AS T2 ON T1.id = T2.games_id WHERE T2.games_id = 13
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: What is the average age of the people who participated in the winter season? AVG(age) where season = 'Winter'; */
SELECT 
SELECT AVG(T2.age) FROM games AS T1 INNER JOIN games_competitor AS T2 ON T1.id = T2.games_id WHERE T1.season = 'Winter'
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: What is the percentage of the people who are under 35 and participated in the summer season? DIVIDE(COUNT(age < 35) / COUNT(person_id)) as percentage where season = 'Summer'; */
SELECT 
SELECT CAST(COUNT(CASE WHEN T2.age < 35 THEN 1 END) AS REAL) * 100 / COUNT(T2.games_id) FROM games AS T1 INNER JOIN games_competitor AS T2 ON T1.id = T2.games_id WHERE T1.season = 'Summer'
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: State the event name of Basketball. basketball refers to sport_name = 'Basketball'; */
SELECT 
SELECT T2.event_name FROM sport AS T1 INNER JOIN event AS T2 ON T1.id = T2.sport_id WHERE T1.sport_name = 'Basketball'
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: What is the name of medal that competitor id 9 obtained? name of medal refers to medal_name; */
SELECT 
SELECT DISTINCT T1.medal_name FROM medal AS T1 INNER JOIN competitor_event AS T2 ON T1.id = T2.medal_id WHERE T2.competitor_id = 9
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: List out the id of event that achieve the gold medal. the gold medal refers to medal_name = 'Gold'; */
SELECT 
SELECT T2.event_id FROM medal AS T1 INNER JOIN competitor_event AS T2 ON T1.id = T2.medal_id WHERE T1.medal_name = 'Gold'
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: Who is the heaviest athlete? Who refers to full_name; the heaviest refers to MAX(weight); */
SELECT 
SELECT full_name FROM person ORDER BY weight DESC LIMIT 1
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: Which city were the Olympic games held in 1992? city refers to city_name; in 1992 refers to games_year = 1992; */
SELECT 
SELECT T2.city_name FROM games_city AS T1 INNER JOIN city AS T2 ON T1.city_id = T2.id INNER JOIN games AS T3 ON T1.games_id = T3.id WHERE T3.games_year = 1992
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: Which region is the majority of the athletes from? region refers to region_name; the majority of the athletes from refer to MAX(COUNT(region_name)); */
SELECT 
SELECT T2.region_name FROM person_region AS T1 INNER JOIN noc_region AS T2 ON T1.region_id = T2.id GROUP BY T2.region_name ORDER BY COUNT(T1.person_id) DESC LIMIT 1
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: What is the name of the oldest competitor? name refers to full_name; the oldest refers to MAX(age); */
SELECT 
SELECT T1.full_name FROM person AS T1 INNER JOIN games_competitor AS T2 ON T1.id = T2.person_id ORDER BY T2.age DESC LIMIT 1
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: Which sport did John Aalberg participate in? sport refers to sport_name; */
SELECT 
SELECT DISTINCT T1.sport_name FROM sport AS T1 INNER JOIN event AS T2 ON T1.id = T2.sport_id INNER JOIN competitor_event AS T3 ON T2.id = T3.event_id INNER JOIN games_competitor AS T4 ON T3.competitor_id = T4.id INNER JOIN person AS T5 ON T4.person_id = T5.id WHERE T5.full_name = 'John Aalberg'
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: How many Belgian men have competed in an Olympic Games? Belgian men refer to gender = 'M' where region_name = 'Belgium'; */
SELECT 
SELECT COUNT(T2.person_id) FROM noc_region AS T1 INNER JOIN person_region AS T2 ON T1.id = T2.region_id INNER JOIN person AS T3 ON T2.person_id = T3.id WHERE T1.region_name = 'Belgium' AND T3.gender = 'M'
/* Given the following database schema: */
CREATE TABLE city
(
    id        INTEGER not null
            primary key,
    city_name TEXT default NULL
)

CREATE TABLE games
(
    id         INTEGER not null
            primary key,
    games_year INTEGER          default NULL,
    games_name TEXT default NULL,
    season     TEXT default NULL
)

CREATE TABLE games_city
(
    games_id INTEGER default NULL,
    city_id  INTEGER default NULL,
    foreign key (city_id) references city(id),
    foreign key (games_id) references games(id)
)

CREATE TABLE medal
(
    id         INTEGER not null
            primary key,
    medal_name TEXT default NULL
)

CREATE TABLE noc_region
(
    id          INTEGER not null
            primary key,
    noc         TEXT   default NULL,
    region_name TEXT default NULL
)

CREATE TABLE person
(
    id        INTEGER not null
        primary key,
    full_name TEXT default NULL,
    gender    TEXT  default NULL,
    height    INTEGER          default NULL,
    weight    INTEGER          default NULL
)

CREATE TABLE games_competitor
(
    id        INTEGER not null
            primary key,
    games_id  INTEGER default NULL,
    person_id INTEGER default NULL,
    age       INTEGER default NULL,
    foreign key (games_id) references games(id),
    foreign key (person_id) references person(id)
)

CREATE TABLE person_region
(
    person_id INTEGER default NULL,
    region_id INTEGER default NULL,
    foreign key (person_id) references person(id),
    foreign key (region_id) references noc_region(id)
)

CREATE TABLE sport
(
    id         INTEGER not null
            primary key,
    sport_name TEXT default NULL
)

CREATE TABLE event
(
    id         INTEGER not null
            primary key,
    sport_id   INTEGER          default NULL,
    event_name TEXT default NULL,
    foreign key (sport_id) references sport(id)
)

CREATE TABLE competitor_event
(
    event_id      INTEGER default NULL,
    competitor_id INTEGER default NULL,
    medal_id      INTEGER default NULL,
    foreign key (competitor_id) references games_competitor(id),
    foreign key (event_id) references event(id),
    foreign key (medal_id) references medal(id)
)

/* Answer the following: How many athletes took part in the Olympic games held in Barcelona? Barcelona refers to city_name = 'Barcelona'; */
SELECT 
SELECT COUNT(T1.person_id) FROM games_competitor AS T1 INNER JOIN games_city AS T2 ON T1.games_id = T2.games_id INNER JOIN city AS T3 ON T2.city_id = T3.id WHERE T3.city_name = 'Barcelona'