更新料件默認單重（非正常單重）

update ima_file set ima20=1 where ima01 like '2%' and ima01 like '%A%' and nvl(ima20,0)=0

update ima_file set ima20=1 where ima01 like '1%'  and nvl(ima20,0)=0

update ima_file set ima20=1 where ima01 like 'P%'  and nvl(ima20,0)=0