how can I use GUID datatype in SQL Server 2008?

Question

I want to build an employees table using SQL SERVER 2008 , and in my table I want to have an ID for each employee .

I heared about GUID and

Answer 1

You can also consider using NEWSEQUENCIALID as the default value for your ID column as it would be faster than using NEWID() generate the GUIDs.

BUT (from the same link above):-

If privacy is a concern, do not use this function. It is possible to guess the value of the next generated GUID and, therefore, access data associated with that GUID.