“If I have seen farther than others, it is because I was standing on the shoulders of giants.”
The Primary Index is defined when the table is CREATED
The Primary Index is defined when the table is CREATED. Above, we have a UPI which stands for a Unique Primary Index (UPI).
A Unique Primary Index (UPI)
CREATE TABLE Emp_Intl
UNIQUE Primary Index ( Emp_No)
A Unique ...