local function do_query(sql)
    local r
    local b
    local vm = db:prepare(sql)
    assert(vm, db:errmsg())
    b=('====================================')
    b=b..(vm:get_unames())
    b=b..('------------------------------------')
    r = vm:step()
    while (r == sqlite3.ROW) do
        --b=b..(vm:get_uvalues())
        r = vm:step()
    end
    assert(r == sqlite3.DONE)
    assert(vm:finalize() == sqlite3.OK)
    b=b..('====================================')
    Dialog.Message('',b)
end

local sqlite3 = require("lsqlite3")

db = sqlite3.open('test.db')
do_query("insert into t values ('aaa')")
do_query("select * from t")</Script>