lianghsun/bird-text2sql-bench huggingface dataset:
### Database Schema
CREATE TABLE Episode
(
    episode_id       TEXT
            primary key,
    series           TEXT,
    season           INTEGER,
    episode          INTEGER,
    number_in_series INTEGER,
    title            TEXT,
    summary          TEXT,
    air_date         DATE,
    episode_image    TEXT,
    rating           REAL,
    votes            INTEGER
)

CREATE TABLE Keyword
(
    episode_id TEXT,
    keyword    TEXT,
    primary key (episode_id, keyword),
    foreign key (episode_id) references Episode(episode_id)
)

CREATE TABLE Person
(
    person_id     TEXT
            primary key,
    name          TEXT,
    birthdate     DATE,
    birth_name    TEXT,
    birth_place   TEXT,
    birth_region  TEXT,
    birth_country TEXT,
    height_meters REAL,
    nickname      TEXT
)

CREATE TABLE Award
(
    award_id       INTEGER
            primary key,
    organization   TEXT,
    year           INTEGER,
    award_category TEXT,
    award          TEXT,
    series         TEXT,
    episode_id     TEXT,
    person_id      TEXT,
    role           TEXT,
    result         TEXT,
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Credit
(
    episode_id TEXT,
    person_id  TEXT,
    category   TEXT,
    role       TEXT,
    credited   TEXT,
    primary key (episode_id, person_id),
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Vote
(
    episode_id TEXT,
    stars      INTEGER,
    votes      INTEGER,
    percent    REAL,
    foreign key (episode_id) references Episode(episode_id)
)

### Question
What was the role of Jason Kuschner in episode 9?

### SQL
SELECT T1.role FROM Credit AS T1 INNER JOIN Person AS T2 ON T2.person_id = T1.person_id INNER JOIN Episode AS T3 ON T1.episode_id = T3.episode_id WHERE T3.episode = 9 AND T2.name = 'Jason Kuschner'
### Database Schema
CREATE TABLE Episode
(
    episode_id       TEXT
            primary key,
    series           TEXT,
    season           INTEGER,
    episode          INTEGER,
    number_in_series INTEGER,
    title            TEXT,
    summary          TEXT,
    air_date         DATE,
    episode_image    TEXT,
    rating           REAL,
    votes            INTEGER
)

CREATE TABLE Keyword
(
    episode_id TEXT,
    keyword    TEXT,
    primary key (episode_id, keyword),
    foreign key (episode_id) references Episode(episode_id)
)

CREATE TABLE Person
(
    person_id     TEXT
            primary key,
    name          TEXT,
    birthdate     DATE,
    birth_name    TEXT,
    birth_place   TEXT,
    birth_region  TEXT,
    birth_country TEXT,
    height_meters REAL,
    nickname      TEXT
)

CREATE TABLE Award
(
    award_id       INTEGER
            primary key,
    organization   TEXT,
    year           INTEGER,
    award_category TEXT,
    award          TEXT,
    series         TEXT,
    episode_id     TEXT,
    person_id      TEXT,
    role           TEXT,
    result         TEXT,
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Credit
(
    episode_id TEXT,
    person_id  TEXT,
    category   TEXT,
    role       TEXT,
    credited   TEXT,
    primary key (episode_id, person_id),
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Vote
(
    episode_id TEXT,
    stars      INTEGER,
    votes      INTEGER,
    percent    REAL,
    foreign key (episode_id) references Episode(episode_id)
)

### Question
Who played the role of the "president of NBC West Coast" in the first episode?

### Hint
who refers to name; the role of the "president of NBC West Coast" refers to role = 'president of NBC West Coast'; the first episode refers to episode = 1

### SQL
SELECT T2.name FROM Credit AS T1 INNER JOIN Person AS T2 ON T2.person_id = T1.person_id INNER JOIN Episode AS T3 ON T1.episode_id = T3.episode_id WHERE T3.episode = 1 AND T1.role = 'president of NBC West Coast'
### Database Schema
CREATE TABLE Episode
(
    episode_id       TEXT
            primary key,
    series           TEXT,
    season           INTEGER,
    episode          INTEGER,
    number_in_series INTEGER,
    title            TEXT,
    summary          TEXT,
    air_date         DATE,
    episode_image    TEXT,
    rating           REAL,
    votes            INTEGER
)

CREATE TABLE Keyword
(
    episode_id TEXT,
    keyword    TEXT,
    primary key (episode_id, keyword),
    foreign key (episode_id) references Episode(episode_id)
)

CREATE TABLE Person
(
    person_id     TEXT
            primary key,
    name          TEXT,
    birthdate     DATE,
    birth_name    TEXT,
    birth_place   TEXT,
    birth_region  TEXT,
    birth_country TEXT,
    height_meters REAL,
    nickname      TEXT
)

CREATE TABLE Award
(
    award_id       INTEGER
            primary key,
    organization   TEXT,
    year           INTEGER,
    award_category TEXT,
    award          TEXT,
    series         TEXT,
    episode_id     TEXT,
    person_id      TEXT,
    role           TEXT,
    result         TEXT,
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Credit
(
    episode_id TEXT,
    person_id  TEXT,
    category   TEXT,
    role       TEXT,
    credited   TEXT,
    primary key (episode_id, person_id),
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Vote
(
    episode_id TEXT,
    stars      INTEGER,
    votes      INTEGER,
    percent    REAL,
    foreign key (episode_id) references Episode(episode_id)
)

### Question
List down the titles of the top 3 episodes, from highest to lowest, in terms of their weighted stars.

### Hint
weighted stars = divide(sum(stars, percent), 100)

### SQL
SELECT T2.title FROM Vote AS T1 INNER JOIN Episode AS T2 ON T2.episode_id = T1.episode_id WHERE T1.stars BETWEEN 1 AND 10 GROUP BY T2.title ORDER BY CAST(SUM(T1.stars * T1.percent) AS REAL) / 100 DESC LIMIT 3
### Database Schema
CREATE TABLE Episode
(
    episode_id       TEXT
            primary key,
    series           TEXT,
    season           INTEGER,
    episode          INTEGER,
    number_in_series INTEGER,
    title            TEXT,
    summary          TEXT,
    air_date         DATE,
    episode_image    TEXT,
    rating           REAL,
    votes            INTEGER
)

CREATE TABLE Keyword
(
    episode_id TEXT,
    keyword    TEXT,
    primary key (episode_id, keyword),
    foreign key (episode_id) references Episode(episode_id)
)

CREATE TABLE Person
(
    person_id     TEXT
            primary key,
    name          TEXT,
    birthdate     DATE,
    birth_name    TEXT,
    birth_place   TEXT,
    birth_region  TEXT,
    birth_country TEXT,
    height_meters REAL,
    nickname      TEXT
)

CREATE TABLE Award
(
    award_id       INTEGER
            primary key,
    organization   TEXT,
    year           INTEGER,
    award_category TEXT,
    award          TEXT,
    series         TEXT,
    episode_id     TEXT,
    person_id      TEXT,
    role           TEXT,
    result         TEXT,
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Credit
(
    episode_id TEXT,
    person_id  TEXT,
    category   TEXT,
    role       TEXT,
    credited   TEXT,
    primary key (episode_id, person_id),
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Vote
(
    episode_id TEXT,
    stars      INTEGER,
    votes      INTEGER,
    percent    REAL,
    foreign key (episode_id) references Episode(episode_id)
)

### Question
What is the ratio of American casts on episode 2 of the series? Please include their roles.

### Hint
American refers to birth_country = 'USA'; cast refers to category = 'Cast'; ratio = divide(count(person_id where birth_country = 'USA'), total(category)) where category = 'Cast'

### SQL
SELECT CAST(SUM(CASE WHEN T2.category = 'Cast' THEN 1 ELSE 0 END) AS REAL) * 100 / COUNT(T2.category), T1.role FROM Award AS T1 INNER JOIN Credit AS T2 ON T1.episode_id = T2.episode_id INNER JOIN Episode AS T3 ON T2.episode_id = T3.episode_id INNER JOIN Person AS T4 ON T2.person_id = T4.person_id WHERE T3.episode = 2 AND T4.birth_country = 'USA'
### Database Schema
CREATE TABLE Episode
(
    episode_id       TEXT
            primary key,
    series           TEXT,
    season           INTEGER,
    episode          INTEGER,
    number_in_series INTEGER,
    title            TEXT,
    summary          TEXT,
    air_date         DATE,
    episode_image    TEXT,
    rating           REAL,
    votes            INTEGER
)

CREATE TABLE Keyword
(
    episode_id TEXT,
    keyword    TEXT,
    primary key (episode_id, keyword),
    foreign key (episode_id) references Episode(episode_id)
)

CREATE TABLE Person
(
    person_id     TEXT
            primary key,
    name          TEXT,
    birthdate     DATE,
    birth_name    TEXT,
    birth_place   TEXT,
    birth_region  TEXT,
    birth_country TEXT,
    height_meters REAL,
    nickname      TEXT
)

CREATE TABLE Award
(
    award_id       INTEGER
            primary key,
    organization   TEXT,
    year           INTEGER,
    award_category TEXT,
    award          TEXT,
    series         TEXT,
    episode_id     TEXT,
    person_id      TEXT,
    role           TEXT,
    result         TEXT,
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Credit
(
    episode_id TEXT,
    person_id  TEXT,
    category   TEXT,
    role       TEXT,
    credited   TEXT,
    primary key (episode_id, person_id),
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Vote
(
    episode_id TEXT,
    stars      INTEGER,
    votes      INTEGER,
    percent    REAL,
    foreign key (episode_id) references Episode(episode_id)
)

### Question
How many people from Canada are nominated for an award?

### Hint
from Canada refers to birth_country = Canada; nominated refers to award is NOT NULL

### SQL
SELECT COUNT(T1.person_id) FROM Person AS T1 INNER JOIN Award AS T2 ON T1.person_id = T2.person_id WHERE T1.birth_country = 'Canada'
### Database Schema
CREATE TABLE Episode
(
    episode_id       TEXT
            primary key,
    series           TEXT,
    season           INTEGER,
    episode          INTEGER,
    number_in_series INTEGER,
    title            TEXT,
    summary          TEXT,
    air_date         DATE,
    episode_image    TEXT,
    rating           REAL,
    votes            INTEGER
)

CREATE TABLE Keyword
(
    episode_id TEXT,
    keyword    TEXT,
    primary key (episode_id, keyword),
    foreign key (episode_id) references Episode(episode_id)
)

CREATE TABLE Person
(
    person_id     TEXT
            primary key,
    name          TEXT,
    birthdate     DATE,
    birth_name    TEXT,
    birth_place   TEXT,
    birth_region  TEXT,
    birth_country TEXT,
    height_meters REAL,
    nickname      TEXT
)

CREATE TABLE Award
(
    award_id       INTEGER
            primary key,
    organization   TEXT,
    year           INTEGER,
    award_category TEXT,
    award          TEXT,
    series         TEXT,
    episode_id     TEXT,
    person_id      TEXT,
    role           TEXT,
    result         TEXT,
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Credit
(
    episode_id TEXT,
    person_id  TEXT,
    category   TEXT,
    role       TEXT,
    credited   TEXT,
    primary key (episode_id, person_id),
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Vote
(
    episode_id TEXT,
    stars      INTEGER,
    votes      INTEGER,
    percent    REAL,
    foreign key (episode_id) references Episode(episode_id)
)

### Question
How many episodes are credited to Jerry Orbach?

### SQL
SELECT COUNT(T2.person_id) FROM Credit AS T1 INNER JOIN Person AS T2 ON T2.person_id = T1.person_id WHERE T2.name = 'Jerry Orbach'
### Database Schema
CREATE TABLE Episode
(
    episode_id       TEXT
            primary key,
    series           TEXT,
    season           INTEGER,
    episode          INTEGER,
    number_in_series INTEGER,
    title            TEXT,
    summary          TEXT,
    air_date         DATE,
    episode_image    TEXT,
    rating           REAL,
    votes            INTEGER
)

CREATE TABLE Keyword
(
    episode_id TEXT,
    keyword    TEXT,
    primary key (episode_id, keyword),
    foreign key (episode_id) references Episode(episode_id)
)

CREATE TABLE Person
(
    person_id     TEXT
            primary key,
    name          TEXT,
    birthdate     DATE,
    birth_name    TEXT,
    birth_place   TEXT,
    birth_region  TEXT,
    birth_country TEXT,
    height_meters REAL,
    nickname      TEXT
)

CREATE TABLE Award
(
    award_id       INTEGER
            primary key,
    organization   TEXT,
    year           INTEGER,
    award_category TEXT,
    award          TEXT,
    series         TEXT,
    episode_id     TEXT,
    person_id      TEXT,
    role           TEXT,
    result         TEXT,
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Credit
(
    episode_id TEXT,
    person_id  TEXT,
    category   TEXT,
    role       TEXT,
    credited   TEXT,
    primary key (episode_id, person_id),
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Vote
(
    episode_id TEXT,
    stars      INTEGER,
    votes      INTEGER,
    percent    REAL,
    foreign key (episode_id) references Episode(episode_id)
)

### Question
List out all the credit names for episode 9.

### Hint
credit name refers to name

### SQL
SELECT T3.name FROM Episode AS T1 INNER JOIN Credit AS T2 ON T1.episode_id = T2.episode_id INNER JOIN Person AS T3 ON T3.person_id = T2.person_id WHERE T1.episode = 9
### Database Schema
CREATE TABLE Episode
(
    episode_id       TEXT
            primary key,
    series           TEXT,
    season           INTEGER,
    episode          INTEGER,
    number_in_series INTEGER,
    title            TEXT,
    summary          TEXT,
    air_date         DATE,
    episode_image    TEXT,
    rating           REAL,
    votes            INTEGER
)

CREATE TABLE Keyword
(
    episode_id TEXT,
    keyword    TEXT,
    primary key (episode_id, keyword),
    foreign key (episode_id) references Episode(episode_id)
)

CREATE TABLE Person
(
    person_id     TEXT
            primary key,
    name          TEXT,
    birthdate     DATE,
    birth_name    TEXT,
    birth_place   TEXT,
    birth_region  TEXT,
    birth_country TEXT,
    height_meters REAL,
    nickname      TEXT
)

CREATE TABLE Award
(
    award_id       INTEGER
            primary key,
    organization   TEXT,
    year           INTEGER,
    award_category TEXT,
    award          TEXT,
    series         TEXT,
    episode_id     TEXT,
    person_id      TEXT,
    role           TEXT,
    result         TEXT,
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Credit
(
    episode_id TEXT,
    person_id  TEXT,
    category   TEXT,
    role       TEXT,
    credited   TEXT,
    primary key (episode_id, person_id),
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Vote
(
    episode_id TEXT,
    stars      INTEGER,
    votes      INTEGER,
    percent    REAL,
    foreign key (episode_id) references Episode(episode_id)
)

### Question
List out all award titles nominated for episode 20.

### Hint
award title refers to title; nominated refers to result = 'Winner' or result = 'Nominee'

### SQL
SELECT T2.award FROM Episode AS T1 INNER JOIN Award AS T2 ON T1.episode_id = T2.episode_id WHERE T1.episode = 20 AND T2.result IN ('Winner', 'Nominee')
### Database Schema
CREATE TABLE Episode
(
    episode_id       TEXT
            primary key,
    series           TEXT,
    season           INTEGER,
    episode          INTEGER,
    number_in_series INTEGER,
    title            TEXT,
    summary          TEXT,
    air_date         DATE,
    episode_image    TEXT,
    rating           REAL,
    votes            INTEGER
)

CREATE TABLE Keyword
(
    episode_id TEXT,
    keyword    TEXT,
    primary key (episode_id, keyword),
    foreign key (episode_id) references Episode(episode_id)
)

CREATE TABLE Person
(
    person_id     TEXT
            primary key,
    name          TEXT,
    birthdate     DATE,
    birth_name    TEXT,
    birth_place   TEXT,
    birth_region  TEXT,
    birth_country TEXT,
    height_meters REAL,
    nickname      TEXT
)

CREATE TABLE Award
(
    award_id       INTEGER
            primary key,
    organization   TEXT,
    year           INTEGER,
    award_category TEXT,
    award          TEXT,
    series         TEXT,
    episode_id     TEXT,
    person_id      TEXT,
    role           TEXT,
    result         TEXT,
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Credit
(
    episode_id TEXT,
    person_id  TEXT,
    category   TEXT,
    role       TEXT,
    credited   TEXT,
    primary key (episode_id, person_id),
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Vote
(
    episode_id TEXT,
    stars      INTEGER,
    votes      INTEGER,
    percent    REAL,
    foreign key (episode_id) references Episode(episode_id)
)

### Question
Which role have won at least two awards for the entire season and list out the name?

### Hint
at least two awards refers to count(role) >1

### SQL
SELECT T1.name FROM Person AS T1 INNER JOIN Award AS T2 ON T1.person_id = T2.person_id GROUP BY T2.role HAVING COUNT(T2.award_id) > 1
### Database Schema
CREATE TABLE Episode
(
    episode_id       TEXT
            primary key,
    series           TEXT,
    season           INTEGER,
    episode          INTEGER,
    number_in_series INTEGER,
    title            TEXT,
    summary          TEXT,
    air_date         DATE,
    episode_image    TEXT,
    rating           REAL,
    votes            INTEGER
)

CREATE TABLE Keyword
(
    episode_id TEXT,
    keyword    TEXT,
    primary key (episode_id, keyword),
    foreign key (episode_id) references Episode(episode_id)
)

CREATE TABLE Person
(
    person_id     TEXT
            primary key,
    name          TEXT,
    birthdate     DATE,
    birth_name    TEXT,
    birth_place   TEXT,
    birth_region  TEXT,
    birth_country TEXT,
    height_meters REAL,
    nickname      TEXT
)

CREATE TABLE Award
(
    award_id       INTEGER
            primary key,
    organization   TEXT,
    year           INTEGER,
    award_category TEXT,
    award          TEXT,
    series         TEXT,
    episode_id     TEXT,
    person_id      TEXT,
    role           TEXT,
    result         TEXT,
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Credit
(
    episode_id TEXT,
    person_id  TEXT,
    category   TEXT,
    role       TEXT,
    credited   TEXT,
    primary key (episode_id, person_id),
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Vote
(
    episode_id TEXT,
    stars      INTEGER,
    votes      INTEGER,
    percent    REAL,
    foreign key (episode_id) references Episode(episode_id)
)

### Question
List out director names that received an award along with the episode number.

### Hint
director refers to role = 'director'; received an award refers to result = 'Winner'; episode number refers to episode

### SQL
SELECT T3.name, T1.episode_id FROM Episode AS T1 INNER JOIN Award AS T2 ON T1.episode_id = T2.episode_id INNER JOIN Person AS T3 ON T2.person_id = T3.person_id WHERE T2.role = 'director' AND T2.result = 'Winner'
### Database Schema
CREATE TABLE Episode
(
    episode_id       TEXT
            primary key,
    series           TEXT,
    season           INTEGER,
    episode          INTEGER,
    number_in_series INTEGER,
    title            TEXT,
    summary          TEXT,
    air_date         DATE,
    episode_image    TEXT,
    rating           REAL,
    votes            INTEGER
)

CREATE TABLE Keyword
(
    episode_id TEXT,
    keyword    TEXT,
    primary key (episode_id, keyword),
    foreign key (episode_id) references Episode(episode_id)
)

CREATE TABLE Person
(
    person_id     TEXT
            primary key,
    name          TEXT,
    birthdate     DATE,
    birth_name    TEXT,
    birth_place   TEXT,
    birth_region  TEXT,
    birth_country TEXT,
    height_meters REAL,
    nickname      TEXT
)

CREATE TABLE Award
(
    award_id       INTEGER
            primary key,
    organization   TEXT,
    year           INTEGER,
    award_category TEXT,
    award          TEXT,
    series         TEXT,
    episode_id     TEXT,
    person_id      TEXT,
    role           TEXT,
    result         TEXT,
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Credit
(
    episode_id TEXT,
    person_id  TEXT,
    category   TEXT,
    role       TEXT,
    credited   TEXT,
    primary key (episode_id, person_id),
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Vote
(
    episode_id TEXT,
    stars      INTEGER,
    votes      INTEGER,
    percent    REAL,
    foreign key (episode_id) references Episode(episode_id)
)

### Question
Which episodes are nominated for an awards but not win?

### Hint
nominated for an award but not win refers to result = 'Nominee'

### SQL
SELECT T1.episode FROM Episode AS T1 INNER JOIN Award AS T2 ON T1.episode_id = T2.episode_id WHERE T2.result = 'Nominee'
### Database Schema
CREATE TABLE Episode
(
    episode_id       TEXT
            primary key,
    series           TEXT,
    season           INTEGER,
    episode          INTEGER,
    number_in_series INTEGER,
    title            TEXT,
    summary          TEXT,
    air_date         DATE,
    episode_image    TEXT,
    rating           REAL,
    votes            INTEGER
)

CREATE TABLE Keyword
(
    episode_id TEXT,
    keyword    TEXT,
    primary key (episode_id, keyword),
    foreign key (episode_id) references Episode(episode_id)
)

CREATE TABLE Person
(
    person_id     TEXT
            primary key,
    name          TEXT,
    birthdate     DATE,
    birth_name    TEXT,
    birth_place   TEXT,
    birth_region  TEXT,
    birth_country TEXT,
    height_meters REAL,
    nickname      TEXT
)

CREATE TABLE Award
(
    award_id       INTEGER
            primary key,
    organization   TEXT,
    year           INTEGER,
    award_category TEXT,
    award          TEXT,
    series         TEXT,
    episode_id     TEXT,
    person_id      TEXT,
    role           TEXT,
    result         TEXT,
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Credit
(
    episode_id TEXT,
    person_id  TEXT,
    category   TEXT,
    role       TEXT,
    credited   TEXT,
    primary key (episode_id, person_id),
    foreign key (episode_id) references Episode(episode_id),
    foreign key (person_id) references Person(person_id)
)

CREATE TABLE Vote
(
    episode_id TEXT,
    stars      INTEGER,
    votes      INTEGER,
    percent    REAL,
    foreign key (episode_id) references Episode(episode_id)
)

### Question
What is the average rating for each episode in season 9?

### Hint
average rating = divide(sum(rating), count(episode_id))

### SQL
SELECT SUM(rating) / COUNT(episode_id) FROM Episode WHERE season = 9