Читать книгу Data Lakes For Dummies - Alan R. Simon - Страница 51

Data warehousing has been on the scene since around 1990, which means that thousands of enterprise-wide data warehouses have been built and deployed over the years. In fact, looking back at the B-52 analogy earlier in this chapter, you can think of a data warehouse as the equivalent of a propeller-driven airplane that preceded the jet aircraft era, which, of course, makes the data lake the equivalent of that technology-leaping jet.

Some ultramodern, large-scale enterprise data warehouses have been built in the past several years, using relatively new technologies such as the SAP HANA in-memory database management system. Many others, however, were built on older relational databases and are still chugging along. They still work okay, for the most part. But in this new era of data lakes, it’s time to decide what to do about the old-timers.