计量单位转换API
set serveroutput on;
Declare
v_Rate Number(30,23);
v_itemid number default 2036;
Begin
v_rate := INV_CONVERT.INV_UM_CONVERT (
ITEM_ID => v_itemid,
PRECISION => 10,
FROM_QUANTITY => 1,
FROM_UNIT => '米',
TO_UNIT => '吨',
FROM_NAME => NULL,
TO_NAME => NULL
);
dbms_output.put_line('Rate :' ||v_rate);
end;
计算结果表示: 1 米(From_Unit) = Rate * 吨(To_Unit)
Precision为转换率的小数位精度。