creating DB..
connection object is sqlite3xx::connection(test3.db)
starting transaction..
create table..
insert some data..
inserted 1 rows.
inserted 1 rows.
inserted 1 rows.
querying..
found 2 records..
found 3 columns..
column 0: 1
column 1: 3
column 2: 2
i: 0
(by col number) i: 5, s: bla, d: 8.933
(by col name) i: 5, s: bla, d: 8.933
(mapped) i: 5, s: bla, d: 8.933
i: 1
(by col number) i: 7, s: blu, d: -1.11111
(by col name) i: 7, s: blu, d: -1.11111
(mapped) i: 7, s: blu, d: -1.11111
end.