The last few years have seen an explosion of interest in NoSQL data-storage layers, and then some retrenchment as the limitations of these systems became increasingly apparent. (It turns out they’re not magic, after all!) Today we seem faced with a choice. On one hand, we can reach for some of the potential “big wins” of NoSQL systems, but many of them are still relatively immature — at least when compared to the RDBMS — and the things we give up (transactionality, durability, manageability) we often discover to be very painful losses. On the other hand, we can reach for the security of a traditional RDBMS; we get incredibly well-understood, robust, durable, manageable systems…but we often sacrifice a lot of potential future growth.