issue with Import/export tables from dev to QA

Hi,

In my project i have created a table from SQL script( create table...)  not as .hdbtable. I have exported that table and imported into QA from DEV system

Now, i altered that table in DEV(changed data type,added new columns and altered the primary key column).

How to import only these changes in QA without dropping/deleting the data?

I cannot create delivery unit as it is created from sql script.

Thanks.