题解 | SQL228 使用join查询方式找出没有分类的电影id以及名称
WITH t1 AS (
SELECT
f.film_id,
f.title
FROM film f
LEFT JOIN film_category fc
ON f.film_id = fc.film_id
LEFT JOIN category c
ON fc.category_id = c.category_id
WHERE fc.category_id IS NULL
)
SELECT * FROM t1;
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