How to get UserId new created user and UserId Log in User

Hi,

How to get UserId registered user and log in UserId?
My new table tbl_Employees, column:
UserId, UserIdNewRegister

Eg.:
1. Log in UserId is: 76F31C27-9AA4-4968-AEAB-8B5DFEED16E7
2. Register a new user, UserId is: 20T31C27-9AA4-4968-83RR-8B5DFEED1632

How to get UserId: 76F31C27-9AA4-4968-AEAB-8B5DFEED16E7 and UserId new user: 20T31C27-9AA4-4968-83RR-8B5DFEED1632.

I want to put the user is stored under UserId 76F31C27-9AA4-4968-AEAB-8B5DFEED16E7 and UserId: 20T31C27-9AA4-4968-83RR-8B5DFEED1632  new user.

LoginCreatedUser is "False" LoginCreatedUser = "False"
 
 
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