NuoDB vs TrailDB: What are the differences?

Developers describe NuoDB as "A scale-out SQL database for global operations". NuoDB’s continuously available, ACID-compliant, SQL database delivers on-demand capacity on commodity hardware across multiple data centers. On the other hand, TrailDB is detailed as "An efficient tool for storing and querying series of events, by AdRoll". TrailDB's secret sauce is data compression. It leverages predictability of time-based data to compress your data to a fraction of its original size. In contrast to traditional compression, you can query the encoded data directly, decompressing only the parts you need.

NuoDB and TrailDB can be categorized as "Databases" tools.

TrailDB is an open source tool with 962 GitHub stars and 64 GitHub forks. Here's a link to TrailDB's open source repository on GitHub.