SQL Script - Loop through huge table

HI Expert,

I've a HANA table which contains approx. 1 million records. I would like to loop through set of records, perform calculation using PAL function, store the results into table and then proceed with next set of records. Is the DECLARE CURSOR and FOR DO..END FOR only option to Loop through.

Is there any other efficient way of looping through huge data set?

Thanks,

Milind