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So..
i can select from db and get all data, for now it looks like this:
value date comment
1123.0 2011/05/31 03:05 asdsad
123.0 2011/05/30 02:41 qw
10.0 2011/05/30 02:35 alga
i store date as text.
i dont know how to make query, to sum all values, if date are the same.
select sum(value), date from yourtable group by date