我的 cs50 pset 7 10.sql 嵌套查询哪里出错了？

Question

我目前正在尝试查找所有执导过评分至少为 9.0 的电影的人的姓名这些表的方案是

CREATE TABLE movies (

                    id INTEGER,
                    title TEXT NOT NULL,
                    year NUMERIC,
                    PRIMARY KEY(id)
                );
CREATE TABLE stars (

                movie_id INTEGER NOT NULL,
                person_id INTEGER NOT NULL,
                FOREIGN KEY(movie_id) REFERENCES movies(id),
                FOREIGN KEY(person_id) REFERENCES people(id)
            );
CREATE TABLE directors (

                movie_id INTEGER NOT NULL,
                person_id INTEGER NOT NULL,
                FOREIGN KEY(movie_id) REFERENCES movies(id),
                FOREIGN KEY(person_id) REFERENCES people(id)
            );
CREATE TABLE ratings (

                movie_id INTEGER NOT NULL,
                rating REAL NOT NULL,
                votes INTEGER NOT NULL,
                FOREIGN KEY(movie_id) REFERENCES movies(id)
            );
CREATE TABLE people (

                id INTEGER,
                name TEXT NOT NULL,
                birth NUMERIC,
                PRIMARY KEY(id)
            );

我的 SQL 查询是：

SELECT DISTINCT name FROM people 
WHERE id IN ( SELECT person_id FROM directors WHERE movie_id IN ( 
    SELECT id FROM movies WHERE id IN (
        SELECT movie_id FROM ratings WHERE votes >= 9.0)));

然而，这未能通过 check50 测试，并给出了错误的输出。谁能帮我解决我哪里出错了？

Answer 1

规范说（强调）

In 10.sql, write a SQL query to list the names of all people who have directed a movie that received a rating of at least 9.0.

查询未筛选 ratings.rating 列。

我的 cs50 pset 7 10.sql 嵌套查询哪里出错了？

Where am I going wrong in my cs50 pset 7 10.sql nested query?

sql

sqlite

cs50