Question

I have following dataset

Id  Title   Group
1   title1    A
2   title2    A
3   title3    A
4   title4    A
5   title1    B
6   title2    B

I want query which returns following result

Group  Title
A      title1, title2, title3, title4
B      title1, title2

Is it possible using GROUP BY ?

Answer 1

Use GROUP_CONCAT:

SELECT
  `group`,
  GROUP_CONCAT( title )
FROM `table`
GROUP BY `group`

btw you might want to consider renaming your “group” column as that’s a reserved word in MySQL. It will still work but you will need to quote it with backticks every time you use it.