HelllOOOOOo All ;) :
I've a qustion about back up , lets assume that I've a Data Base , contains more than 70 users , and I made a back up for example in 2:00 am, after that 20 users(randomly) made some changes ,then in 3:00 am for example there was a bad sector in Hard Disk , so if I want to reurn the changes that have made for 20 users , how can I return them back ? is thier any strategy?
Thanks in Advance, I appreciate any reply :)