Hi,
I have a person table & Person Object. I set data for only some columns along with pk, and using saveOrUpdate method. It is updating all columns with null for fileds with null data.

I just want to update only columns that I set data in Object. if filed is null in object, I don't want that column to be touched in table.

How do I do that, any help?
Thanks

As you know the PK, load the object, modify the properties you need to and update it.

This seems the simplest solution, rather than your apparant method of creating a new object, setting the PK and some proeprties and trying to update it.