OMFYS

A database is defined as an organized collection of data. Early databases were flat and limited to simple rows and columns. Today, relational databases and Object-oriented databases are very prominent.

A data warehouse on the other hand is designed to gather business insights and allows to integrate their data, manage it and analyze it.

A data lake - popularly trending since the recent years - is a place to store diverse data from diverse sources and prepares the data later as people access it.

These three data storage methodologies, though defined separately, are interconnected to one another in terms of usage and coexistence. We have just skimmed the definitions of the same.

Feel free to comment if anything is to be added to the definitions.

" Data Science is not a subset of Artificial Intelligence. The two technologies share similarities and differences, but one can't be called a subset of the other subject.

Both of these subjects belong to the information technology industry, but their functionalities, goals and use cases differ. "

- Blog titled " Is Data Science a Branch of Artificial Intelligence? "