mohan singh

mohan singh

  • 1.7k
  • 69
  • 6.5k

Share a primary key column among multiple tables

Jul 11 2016 12:50 AM
I have two separate tables to store Admin and other user info,both the tables have a common column for username and i want the username to be  be unique in both the tables is it possible to have a primary key column across multiple tables? 

Answers (3)