mysql查询可以有两个带有2个IN子句的内部联接吗？

Question

我有4个不同的mysql表，

SELECT node.created AS node_created, node.nid AS nid, node.title AS title 
FROM node
INNER JOIN  field_data_field_resume_education ON field_data_field_resume_education.entity_id = node.nid
INNER JOIN 
    field_data_field_resume_of_study ON 
    field_data_field_resume_of_study.entity_id =
    field_data_field_resume_education.field_resume_education_value
INNER JOIN 
    field_data_field_resume_degree_level ON 
    field_data_field_resume_degree_level.entity_id =
    field_data_field_resume_education.field_resume_education_value 
WHERE  field_data_field_resume_degree_level.field_resume_degree_level_tid  IN (4,7) 
AND  field_data_field_resume_of_study.field_resume_of_study_tid IN (18,19,21) 
and (node.status = '1') 
AND (node.type IN  ('resume_content ')) 
GROUP BY nid 
ORDER BY node_created DESC

我试图从2个不同的表中获取值，以便IT仅返回两个表中都存在的通用值，但它只返回一个空查询。 我检查了两个都有一个共同的nodeid。

在where子句中可以有2个IN子句条件吗？

请告诉我代码有什么问题。

Answer 1

如果不是问题node.type IN（'resume_content'），则检查另外两个连接以及其中的所有条件，其中一个连接将失败，例如连接field_data_field_resume_of_study.entity_id = field_data_field_resume_education.field_resume_education_value可能失败。

您应该从一个表中执行select *，然后从一个表中选择*，然后从一个表中选择*，然后从一个表中选择*，从第三个表中选择*，然后从第三个表中选择*，从另一个表中选择第3个条件，在第1个条件下，您将很容易知道其失败之处...