How do you find your license key number?
It is generally included in the box the software came in, on the case the actual disk came in, or in the manual that came with the software. On other (rarer) occasions, one has to pay separately for the license key from the company.
If you have a persons Social security number and drivers license number can you find his drivers license number?
A primary key is the identifier in a table. It cannot contain values that are null, and it has to be unique for every record. For example, a driver's license number could be a primary key in a relational database table. Every driver is assigned to one unique identifier, or driver's license number, and no two driver's license numbers are identical.