Question

我目前正在处理一个小型SQL查询，但我收到了以下错误：

ORA-00907：缺少右括号。

以下是代码：

SELECT actor.first_name Vorname,
       actor.last_name  Nachname,
       film.length      Filmlaenge
FROM   actor
       INNER JOIN (film_actor
                   INNER JOIN film
                     ON film.film_id = film_actor.film_id)
         ON actor.actor_id = film_actor.actor_id
ORDER  BY film.length DESC
LIMIT 10

Answer 1

不要像这样嵌套连接。将ON放在JOIN之后。以下适用于最新版本的Oracle：

SELECT a.first_name Vorname, a.last_name Nachname, f.length as Filmlaenge
FROM actor a INNER JOIN
     film_actor a
     ON a.actor_id = fa.actor_id INNER JOIN 
     film f
     ON f.film_id = fa.film_id
ORDER BY f.length DESC
FETCH FIRST 10 ROWS ONLY;

在早期版本中，您可以这样做：

SELECT fa.*
FROM (SELECT a.first_name Vorname, a.last_name Nachname, f.length as Filmlaenge
      FROM actor a INNER JOIN
           film_actor a
           ON a.actor_id = fa.actor_id INNER JOIN 
           film f
           ON f.film_id = fa.film_id
      ORDER BY f.length DESC
     ) fa
WHERE rownum <= 10;

错误：ORA-00907：缺少右括号

1 个答案: