MySql的选择结肠

Question

表：用户

| user_Id | my_threads   |    
| 100  | 200:1, 201:2, 217:4 | 
| 101  | 200:1, 215:3, 217:4 | 

表：螺纹

| thread_id | author_id | title      | 
| 217  | 100  | This is title thread  | 
| 200  | 101  | this is only test   | 

当用户登录成功{$用户id = USER_ID，即用户线程的节目标题？

select title 
from thread 
where FIND_IN_SET(thread.thread_id,(select my_threads from user where user_id=100)); 

这个SQL上述作品时my_threads没有冒号这样的200，217

Answer 1

试试这个：

取代你的结肠逗号

select title 
from thread 
where FIND_IN_SET(thread.thread_id, 
     (select replace(replace(my_threads,':',','),' ','') from user where user_id=100)) 

SQL fiddle demo