ChronoDB is a data manager for generic time series.
...With its simple and powerful schema subsystem it takes charge of very large heterogeneous data sets. The software consist of an API and a generic implementation layer running on top of an SQL or a NoSQL system. Applications can mix objects from multiple ChronoDB databases.
HDB is a small, flexible and efficient hybrid database, a mix between a filesystem and a database. It comes with a wide support of command line utilities for manipulating and extracting data. It's designed for both embedded and bigger systems. It curren