The OpenCog (hyper-)graph database and graph rewriting system
C++ implementation of JMESPath, a query language for JSON http://jmespath.org
Four-Valued Reasoning System
RetractorDB - Time Series Database
A suite of module which adds full text search, graph traversal, graph db mapping, full text indexing, buseness rules, set operations and more to a standard REDIS installation.,
Custom mutable in-memory relational Database with DSL query language
Handy SQL-like query language tool for manipulating file system.
A lightweight search query execution engine in C++
FlexiBase Shell (a close to real database inspired by MongoDb) that is a testament to the power of C++ and custom-built data structures from scratch.
Functional example that demonstrates query with constraints
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