It can be played around the world
In a real-world environment, changing granularity requirements might dictate changes in primary key selection, and those changes might ultimately require the use of surrogate keys.
Explanation:
A surrogate key is a unique identity as an object or entity. It is used as an object in the database and as an entity in the modern world. Surrogate key is not a natural key hence it cannot be derived from application data.
Advantages of using surrogate key:
- They are unique
- They have uniform rules
- It allows unlimited values
- It stands the test of time
Answer:
have you told anyone about it? like a teacher or something?
Explanation:
I think it's just a glitch
Answer:
a blog
Explanation:
a forum is for questions, a wiki doesn't make sense in this situation and email wouldn't be used for this either so it should be a blog
From Google:
"<span>a built-in C++ function that returns the current time(according to your computer system's clock) as seconds elapsed since midnight on January 1, 1970; often used as the seed argument in the srand function; a program that uses the time function must contain the #include <ctime> directive"
I hope this helps you with your question</span>
