Auto populate values in the the database table

Hi All,

I have a requirement where user enter values in one of the ZTransaction. This will update a Ztable. So the new requirement is to add two new columns in the fields, which is completed. Now this two new fields are supposed to auto populate values based upon the key field .

The transaction code is defined with Transaction as SM30 and Default values as

Name of the screen field     value

Update                               X

VIEWNAME                      "table name which the values are updated".

Please let me know how to do this.

Thank you!!