計算年齡在內部查詢然後與值比較

Question

我有兩個表。

1. fbuser（facebook_ID，DATE_OF_BIRTH） - facebook_id是主鍵
2. 牆（wall_ID，facebook_ID，public_view） - facebook_id是外鍵

我想找到誰擁有牆面設置爲用戶公衆觀點，年齡超過24歲？

Select f.facebook_ID from fbuser f, wall w 
WHERE 
    (w.public_view='y') 
AND 
    (f.facebook_ID=w.facebook_ID) 
AND 
    (select FLOOR(MONTHS_BETWEEN(CURRENT_DATE, f.date_of_birth)/12) 
    as person_age from fbuser where person_age >=24; 

Answer 1

SELECT 
    f.facebook_ID 
FROM fbuser f, wall w 
WHERE 
    (f.facebook_ID=w.facebook_ID) 
AND 
    (w.public_view='y') 
AND 
    ( (MONTHS_BETWEEN(CURRENT_DATE, f.date_of_birth)/12) >=24);