Which data does the dataset consist of?

Hello community,

Could someone help me and explain what part of data is transmitted from the data source to the data set.

Pls. picture the following example.

ID        Name        Date of Birth          

1          James              23.12.88

2          Catrine             23.10.77

3          Jim                   23.06.67

If I would store the whole data in my private database and would want to transmit just the most necessary data to render it in the cloud (that happens at the microsoft’s cloud, as I have understood).

What data from the upper shown table would be transmitted to the dataset from data source for rendering purposes. The whole data or just the attribute names?

Thanks in advance,

Emil