Click here for 12 Data Guard Build by Umer Hussaini
Let me give you a brief about the scenario
first a level 0 backup-----full backup
full backup size is 126 M
Now I take a level 1 incremental backup, please notice that the size is 162 M
I again take a level 1 incremental backup, but now the size is 664k
My question at the first instance when I took the incremental backup, it should have only taken affected blocks & not the whole database backup??????????????
Second time it did take only effected blocks size shows it.