What is the significance of 'select content delta'? I am trying to install bw statistics datasources from business content. In the document link given below it is specified to use this option. when I am using that option and trying to install it is displaying that the extract structure of one of the datasource is invalid. The same option can also be seen on the top in RSA5.
http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/c8c4d794-0501-0010-a693-918a17e663cc
It can be seen in the 43rd page.