Relational databases

How are relational databases structured differently than flat-file databases? Describe the advantages and disadvantages of the flat file versus the relational structure of data.

Consider how the scope of the domain impacts the ability to of users to ask and answer potentially important clinical questions, how the physical design of tables, keys,

and relationships, as well as the existence of up-to-date data dictionaries and ERDs, might impact the quality of the data, and the ability to obtain actionable information

from the database.