我有一个包含以下两个表的数据库,USERS,POSTS
我正在寻找一种方法来计算用户有多少帖子.

Users            Posts
+----+------+    +----+---------+-----------+
| ID | Name |    | ID | user_id | Name      |
+----+------+    +----+---------+-----------+
| 1  | Bob  |    | 1  | 1       | Blargg... | 
+----+------+    +----+---------+-----------+
| 2  | Jim  |    | 2  | 1       | Blargg... | 
+----+------+    +----+---------+-----------+
| 3  | Jo   |    | 3  | 2       | Blargg... | 
+----+------+    +----+---------+-----------+

我尝试了以下sql命令的许多变体,但没有任何成功.而不是显示单个用户的帖子数,它显示一行,所有帖子都作为计数.

SELECT users.*,COUNT( Posts.user_id ) 
FROM users
LEFT JOIN Posts ON users.id = Posts.user_id

最后我想要这样的东西

+----+------+ 
| ID | Count|
+----+------+
| 1  |  2   |  
+----+------+
| 2  |  1   |  
+----+------+