Published on InterSystems Developer Community (https://community.intersystems.com)

Home > Whats Unique, PrimaryKey and IDKey?

Question
Tiago Ribeiro · Sep 26, 2017

Whats Unique, PrimaryKey and IDKey?

Hi guys!


Unique, PrimaryKey and IDKey?
In what contexts does it apply?

IDKey sets the registry key access to the store.
PrimaryKey, Unique, and IDKey define the uniqueness in the records, but what is correct?

I use everyone? What is the context of each?

#Caché #Indexing

Source URL:https://community.intersystems.com/post/whats-unique-primarykey-and-idkey