In this article I will detail caching strategies that don't give up correctness to gain speed. These strategies all do away with TTLs and instead use active invalidation.

A web-based notebook that enables interactive data analytics. You can make beautiful data-driven, interactive and collaborative documents with SQL, Scala and more.

BayesDB, a Bayesian database table, lets users query the probable implications of their data as easily as a SQL database lets them query the data itself. Using the built-in Bayesian Query Language (BQL), users with no statistics training can solve basic data science problems, such as detecting predictive relationships between variables, inferring missing values, simulating probable observations, and identifying statistically similar database entries.

Today, we are releasing MoSQL, a tool Stripe developed for live-replicating data from a MongoDB database into a PostgreSQL database. With MoSQL, you can run applications against a MongoDB database, but also maintain a live-updated mirror of your data in PostgreSQL, ready for querying with the full power of SQL.