Grant's order in sql

First of all iam so sorry because my english is very bad...I hope you can understand what i want to ask...

first that I wanted to ask what was that had heard or knew about the control of data access?Especially the security of the data?

I knew that was 3, is DAC, MAC and RBAC...
I wan to ask about the principle of control access discretionary (DAC) in sql was depicted by what?

Control access discretionary meaning that the access rule that was determined by the owner of the object.
The owner took the decision whoever was permitted to access the object and the privilege what they had.
Was that the same as Grant?

What implementation was suitable to show this DAC principle with used sql??

Thank for you answer.......:)