In Sqlite I can use group_concat to do:
1...A
1...B
1...C
2...A
2...B
2...C
1...C,B,A
2...C,B,A
but the order of the concatenation is random - according to docs.
I need to sort the output of group_concat to be
1...A,B,C
2...A,B,C
How can I do this?
Can you not use a subselect with the order by clause in, and then group concat the values?
Something like
SELECT ID, GROUP_CONCAT(Val)
FROM (
SELECT ID, Val
FROM YourTable
ORDER BY ID, Val
)
GROUP BY ID;