How to Create a Generic Delta Datasource

Hi All,

I have created a extractor thru RSO2 using a table.

The table consist of a time field which i set it to the timestamp field. After initlializing the delta upload successfully, when i run delta upload, no data has been uploaded even having made changes to some of the records.

Why is it so? Kindly advise.

Does the timestamp field have to be a datetime field or it can be any field of any data type?

Thanks in advance.