如何从同一SQL中的两个不同表中获取两个值

Question

i have two tables

• Questions

  • Id_question
  • question

• Answers

  • Id_question
  • Id_answers
  • answer

If i use this query,

select q.question, a.answer from Question q, Answers a where q.Id_question= a.Id_question

i get the question and asociated answers but i repeat questions, for example

question

First question?
  Yes
First question?
 No
Second question?
Probably
Second question?
 Yei

It´s posbile to get first question and asociated answers and then get the second question and asociated answers without repeat question?

Answer 1

It's not quite clear what you are looking for in the output, but you could try something like this:

select q.question, group_concat(a.answer)
from Question q, Answers a 
where q.Id_question= a.Id_question
group by q.question

the group_concat function will give you a comma-separated list. The output should look like:

First question?  | Yes, No
Second question? | Probably, Yei