https://venzi.wordpress.com/2007/09/27/bulk-collect-forall-vs-cursor-for-loop/
FOR is an actual loop which will go through records one by one and do some processing.
FORALL is NOT an actual loop, it's just a notation for a bulk DML operation. It will NOT go through rows one by one. For example, you can do some row processing in a FOR loop, but you won't be able to do it in FORALL.
FOR is an actual loop which will go through records one by one and do some processing.
FORALL is NOT an actual loop, it's just a notation for a bulk DML operation. It will NOT go through rows one by one. For example, you can do some row processing in a FOR loop, but you won't be able to do it in FORALL.
