I am doing SELECT GROUP_CONCAT(categories SEPARATOR ' ') FROM table
. Sample data below:
categories
----------
test1 test2 test3
test4
test1 test3
test1 test3
However, I am getting test1 test2 test3 test4 test1 test3
back and I would like to get test1 test2 test3 test4
back. Any ideas?
Many thanks!
GROUP_CONCAT has DISTINCT attribute:
SELECT GROUP_CONCAT(DISTINCT categories ORDER BY categories ASC SEPARATOR ' ') FROM table