Table: SurveyLog

+-------------+------+
| Column Name | Type |
+-------------+------+
| id          | int  |
| action      | ENUM |
| question_id | int  |
| answer_id   | int  |
| q_num       | int  |
| timestamp   | int  |
+-------------+------+
This table may contain duplicate rows.
action is an ENUM (category) of the type: "show", "answer", or "skip".
Each row of this table indicates the user with ID = id has taken an action with the question question_id at time timestamp.
If the action taken by the user is "answer", answer_id will contain the id of that answer, otherwise, it will be null.
q_num is the numeral order of the question in the current session.

The answer rate for a question is the number of times a user answered the question by the number of times a user showed the question.

Write a solution to report the question that has the highest answer rate. If multiple questions have the same maximum answer rate, report the question with the smallest question_id.

The result format is in the following example.

Example 1:

Input: 
SurveyLog table:
+----+--------+-------------+-----------+-------+-----------+
| id | action | question_id | answer_id | q_num | timestamp |
+----+--------+-------------+-----------+-------+-----------+
| 5  | show   | 285         | null      | 1     | 123       |
| 5  | answer | 285         | 124124    | 1     | 124       |
| 5  | show   | 369         | null      | 2     | 125       |
| 5  | skip   | 369         | null      | 2     | 126       |
+----+--------+-------------+-----------+-------+-----------+
Output: 
+------------+
| survey_log |
+------------+
| 285        |
+------------+
Explanation: 
Question 285 was showed 1 time and answered 1 time. The answer rate of question 285 is 1.0
Question 369 was showed 1 time and was not answered. The answer rate of question 369 is 0.0
Question 285 has the highest answer rate.

Get Highest Answer Rate Question

Problem Description

Problem Description

Answer Panel