how do they work?
so i saw someone posting like...
Create Table login
(Id int(4) NOT NULL,
UserName varchar(20) NOT NULL,
Password varchar(6) NOT NULL,
securityQuestion varchar(50) NOT NULL,
SecurityAnswer varchar(50) NOT NULL,
Primary key (Id));
This person is clearly using numeric key...
but how do they work?
If I need information regarding a certain person's username and password... how is numeric key going to help the query?
any help would be greatly appreciated