Changing From Full to delta load

Could someone please help with this

i have used a Functional Module to extract data from R/3

i have created a new InfoCube and did a full load and everything is fine

There is NO ODS involved

i now want to change data loads from FULL to DELTAs

Can i do this without using an ODS and RECORDMODE - if so, how?

Thankyou

Pushpa