Question

I have this query below:

   SELECT q.QuestionId,GROUP_CONCAT(DISTINCT Answer SEPARATOR '') AS Answer
   FROM Question q
   INNER JOIN Answer an ON q.QuestionId = an.QuestionId
   GROUP BY an.QuestionId

NOw where you can see in my select statement I have this field (DISTINCT Answer SEPARATOR '') AS Answer. Now lets say in the output it outputs this below:

Answer

ECB
FDA

I want the Answers to be ordered in alphabetical order so that it displays its like below:

Answer

BCE
ADF

Does anyone know what I need to change in the SQL in order to acheieve this?

Answer 1

It’s sometimes useful to read the documentation. MySQL GROUP_CONCAT

  SELECT q.QuestionId,GROUP_CONCAT(DISTINCT Answer
                                   ORDER BY Answer
                                   SEPARATOR '') AS Answer
    FROM Question q
    JOIN Answer an ON q.QuestionId = an.QuestionId
GROUP BY an.QuestionId

Do have a look at using something sensible as SEPARATOR rather than ” (nothing), otherwise your answers get mashed together.