What is the capability to combine data from separate sources

What is the capability to combine data from separate sources to gain information?

A. Metadata

B. Inference

C. Aggregation

D. Deadlocking

Solution

Answer C: Agggregation

Ecplanation:

In dbms aggregation is a process of when relationships between two entities are treated as a single entity.

So the data in separste sources(table) are combined into the current table to gain information.

Inference in an idea or conclusion that is generated ftom the reasoning or evidence. inference works on guess.

It generates data based on accumulated information.But aggregation combiles two setvof concrete data

Do Aggregation is the correct one.