I have a problem in incremental loading .. I need to generate previous 13 months data(actual table) and every month of 15th the data gets updated. I need to save all the history, so that all the data gets loaded in the history table for the initial load and for second load, the extra one month data gets appended to it in the history table. Here the history table size should be greater than the actual details table (13 months) as all the history is getting append to the qvd. but my history qvd and actual data qvd are having the same size.