Wordpress DB上的MySQL语法错误

Question

我正在尝试查询wordpress db。但是我收到了这个错误，我无法弄明白。任何人都可以帮助我。

查询：

SELECT DISTINCT aub_terms.* FROM aub_term_relationships 
  JOIN aub_posts ON aub_posts.ID = aub_term_relationships.object_id 
  JOIN aub_term_taxonomy ON aub_term_taxonomy.term_taxonomy_id = aub_term_taxonomy.term_taxonomy_id 
  JOIN ON aub_term_taxonomy.term_id = aub_terms.term_id 
WHERE `aub_term_taxonomy`.`taxonomy` = 'post_tag' 
  AND aub_posts.ID IN (254,239,175,150,119,65,63,61,59,54,51);

错误：

#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'ON aub_term_taxonomy.term_id = aub_terms.term_id WHERE `aub_term_taxonomy`.`taxo' at line 1

Answer 1

你没有在任何地方访问“aub_terms”表... 试试这个：

SELECT DISTINCT aub_terms.* 
FROM aub_term_relationships 
    JOIN aub_posts ON aub_posts.ID = aub_term_relationships.object_id 
    JOIN aub_term_taxonomy ON aub_term_taxonomy.term_taxonomy_id = aub_term_taxonomy.term_taxonomy_id 
    JOIN aub_terms ON aub_term_taxonomy.term_id = aub_terms.term_id 
WHERE `aub_term_taxonomy`.`taxonomy` = 'post_tag' 
AND aub_posts.ID IN (254,239,175,150,119,65,63,61,59,54,51);

Answer 2

您的第3个JOIN不包含表名。我想，您的查询应该如下所示：

SELECT DISTINCT aub_terms.* FROM aub_term_relationships 
 JOIN aub_posts ON aub_posts.ID = aub_term_relationships.object_id 
 JOIN aub_term_taxonomy ON aub_term_taxonomy.term_taxonomy_id =   aub_term_taxonomy.term_taxonomy_id 
 JOIN aub_terms ON aub_term_taxonomy.term_id = aub_terms.term_id 
WHERE `aub_term_taxonomy`.`taxonomy` = 'post_tag' 
 AND aub_posts.ID IN (254,239,175,150,119,65,63,61,59,54,51);