When you calculate a dense dimension and do not use a FIX command, Essbase calculates at least some of the data values in every data block in the database.
For example, the following calculation script is based on the Sample.Basic database:
SET CLEARUPDATESTATUS AFTER; CALC DIM(Year);
This script calculates the Year dimension, which is a dense dimension. Because Year is dense, every data block in the database includes members of the Year dimension. Therefore, Essbase calculates data values in every data block. Because the script uses the SET CLEARUPDATESTATUS AFTER command, Essbase marks all data blocks as clean.