I know I've read that you can easily perform an "online" backup. My question is how are changes handled to the live data while a backup is being formed.
Example is 20 people update tables or delete records within a database during the START of a database backup, will those changes reflect once the backup is finished? My thinking is they will be written to log but never appear in the data until the backup is finished.
I'm backing up a rather large database (800gb).