What does relational capabilities mean in Codd's Foundation rule?

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relational-theory rdbms database-theory database-agnostic codds-rules

                          From Codd's 12 rules  (emphasis mine):

> For any system that is advertised as, or claimed to be, a relational
> data base management system, that system must be able to manage data
> bases entirely through its ***relational capabilities***.

What does *"relational capabilities"* mean here? Does it mean that you could manage the database by only using a language like SQL? Does it mean anything beyond this?
                        

Asked by Mehdi Charife (131 rep)

May 16, 2023, 05:10 PM
Last activity: May 18, 2023, 11:29 PM

What does relational capabilities mean in Codd's Foundation rule?

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