添加JOIN這個MySQL查詢

Question

SELECT t1.* FROM HOSTS AS t1 
WHERE 
t1.BOSS = 'BRUCE' 
OR (t1.BOSS_TYPE = 'manager' 
AND t1.BOSS_ID = 'BRUCE') 
OR t1.BOSS IN (SELECT t2.STORES FROM 
    FOLLOW_STORES AS t2 
WHERE t2.BOSSES = 'BRUCE') 

上述查詢的偉大工程，但我想添加一個JOIN來獲得額外的信息

我要添加此連接，但我不能讓它的工作。我必須把它插入錯誤的地方。

JOIN MANAGER_POSTS AS t3 ON (t1.POSTER_ID = t3.POSTER_ID 
    AND t1.SUBMISSION_TYPE = 'post') 

什麼是正確的方式來添加一個連接來獲得這些額外的信息

Answer 1

這裏試試這個添加您JOIN條款one：

SELECT t1.* , t3.* 
FROM HOSTS AS t1 
      INNER JOIN MANAGER_POSTS AS t3 
       ON (t1.POSTER_ID = t3.POSTER_ID AND 
        t1.SUBMISSION_TYPE = 'post') 
WHERE t1.BOSS = 'BRUCE' 
     OR (t1.BOSS_TYPE = 'manager' AND t1.BOSS_ID = 'BRUCE') 
     OR t1.BOSS IN ( 
          SELECT t2.STORES 
          FROM FOLLOW_STORES AS t2 
          WHERE t2.BOSSES = 'BRUCE' 
         ) 

Answer 2

你會需要你的FROM Hosts後和之前您WHERE

SELECT t1.* 
FROM HOSTS AS t1 
INNER JOIN MANAGER_POSTS AS t3 
    ON (t1.POSTER_ID = t3.POSTER_ID 
    AND t1.SUBMISSION_TYPE = 'post') 
WHERE t1.BOSS = 'BRUCE' 
    OR (t1.BOSS_TYPE = 'manager' 
      AND t1.BOSS_ID = 'BRUCE') 
    OR t1.BOSS IN (SELECT t2.STORES 
        FROM FOLLOW_STORES AS t2 
        WHERE t2.BOSSES = 'BRUCE')