SQL -参与者之间的关系

Question

我有一张有两列的表:演员和电影，如下所示：

ACTOR  | MOVIE
-------+-------------
Volta  | Pulp Fiction
Bruce  | Pulp Fiction
Rhame  | Pulp Fiction
Walke  | Pulp Fiction
Rhame  | Bad Movie
Bruce  | Bad Movie
Volta  | Decent Movie
Brian  | Decent Movie
Walke  | Awesome Movie
Brian  | Awesome Movie

我想知道哪些演员，谁曾出现在纸浆小说，从来没有出现在另一部电影与另一个演员从纸浆小说。

从这个例子中，输出应该是：

Volta
Walke

因为他们分别出现在纸浆小说和体面电影和可怕的电影，没有任何其他演员从纸浆小说。

我在用MySQL。

Answer 1

SELECT m.actor
FROM movies m 
WHERE 
m.movie = 'Pulp Fiction'
AND NOT EXISTS
(
  SELECT 1
  FROM movies m1 
    JOIN movies m2 ON m1.movie = m2.movie 
      AND m1.actor <> m2.actor 
      AND m2.movie <> 'Pulp Fiction' 
      AND m2.actor IN (SELECT actor FROM movies WHERE movie = 'Pulp Fiction')
  WHERE
      m.actor = m1.actor 
)

根据SQLFiddle的ChrisProsser所做的，它应该给出适当的结果。

Answer 2

也许有一种更简单的方法，但这应该是可行的：

select m.actor 
  from movies m
 where m.movie = 'Pulp Fiction'
   and m.actor not in (
       select m2.actor
         from movies m1,
              movies m2,
              movies m3
        where m1.actor = m2.actor
          and m1.movie = 'Pulp Fiction'
          and m2.movie != m1.movie
          and m3.movie = m2.movie
          and m3.actor in (select m4.actor
                             from movies m4
                            where m4.movie = 'Pulp Fiction')
        group by m2.actor
        having count(*) > 1);

我创建了一个SQL Fiddle来测试这一点，并且输出是正确的。

Answer 3

试试这个..。

SELECT actor, movie 
FROM actor
where movie like 'Pulp Fiction' AND
movie NOT IN(select movie from tablename t where t.actor like actor and movie NOT LIKE 'Pulp Fiction');