| Subject | Primary Key x Unique Key |
|---|---|
| Author | Hugo Eyng |
| Post date | 2013-07-25T19:25:42Z |
Hello.
When should I use a Unique Key instead of a Index?
I know that a Unique Key does not allow duplicated values like a Primary
Key, but what more?
Is there some advantage using a Unique Key?
A Unique Key is the same that Alternate Key?
--
Atenciosamente,
Hugo Eyng
When should I use a Unique Key instead of a Index?
I know that a Unique Key does not allow duplicated values like a Primary
Key, but what more?
Is there some advantage using a Unique Key?
A Unique Key is the same that Alternate Key?
--
Atenciosamente,
Hugo Eyng