使用MySQL进行IN后内部联接两个表上的SQL语法

Question

我在以下sql查询中遇到问题

SELECT c.item1 ,c.id, a.id
FROM table_c as c
WHERE c.id IN
  (
   SELECT id
   FROM table_b
   WHERE someinfo = 'active'
  )
AND c.id IS NOT NULL
INNER JOIN table_a as a
ON c.id=a.id

问题出在INNER JOIN

INNER JOIN table_a as a
ON c.id=a.id

Sequel Pro输出

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 'INNER JOIN 

有人可以给我一些见解吗

Answer 1

未经测试：内部联接应该在WHERE子句之前

SELECT c.item1 ,c.id, a.id
FROM table_c as c
INNER JOIN table_a as a ON c.id=a.id
WHERE c.id IN
(
   SELECT id
   FROM table_b
   WHERE someinfo = 'active'
)
AND c.id IS NOT NULL