The old library walls began to crack. It was too slow, too rigid, and—most importantly—far too expensive to store the ocean. The Rise of the Data Lake

In the early 2000s, the was a pristine library. It was a place of order, where structured data sat on mahogany shelves in neat rows. To get inside, you had to speak the language of SQL, and every piece of information was meticulously vetted by the "Librarians" (DBAs) before it was allowed through the door. Then came the Great Flood of 2010 .

Data warehousing didn't die in the age of Big Data—it just learned how to swim.