M3 monorepo - Distributed TSDB, Aggregator and Query Engine, Prometheus Sidecar, Graphite Compatible, Metrics Platform

OctoSQL is a query tool that allows you to join, analyse and transform data from multiple databases and file formats using SQL.

Simple and powerful toolkit for BoltDB

Home of the community managed version of Presto, the distributed SQL query engine for big data, under the auspices of the Presto Software Foundation.

A golang expression evaluator & Library to build SQL query engine based functionality.

The OpenCog (hyper-)graph database and graph rewriting system

Federated mysql compatible proxy to elasticsearch, mongo, cassandra, big-table, google datastore

📬 Comunica is a highly modular and flexible meta query engine for the Web

Query multiple APIs and DBs and join them in a single query

🛠️ A modular DOM manipulation library.

⛈️ Rumble 1.7.0 "Phoenix Atlantica"🌳 for Apache Spark | Run queries on your large-scale, messy JSON-like data (JSON, text, CSV, Parquet, ROOT, AVRO, SVM...) | No install required (just a jar to download) | Declarative Machine Learning and more

Compilation and Verification of Data-Centric Languages

The Apache Storm implementation of the Bullet backend

Incremental view maintenance for openCypher graph queries.

In memory cache server with query capabilities

Store immutable facts and query them with datalog.

Ethereum utilities for Elixir

Super-Efficient SPARQL Search Engine (can handle Wikidata, allows Text Search, offers Autocompletion)

🚂 A framework for building SPARQL query engines in Javascript/Typescript

A Relational Optimizer and Executor

A semantic and technical analysis of musical scores based on Information Retrieval Principles

An adaptive query processing engine for SPARQL endpoints.

This library automaticly generates LINQ Expressions from Dtos to Database Entities

🍵 SPARQL-like DSL for querying in memory Linked Data Models

🖼 A jQuery widget to query heterogeneous interfaces using Comunica SPARQL

Cloudformation template for deploying Presto on AWS

Multi-backend GPU datababse written with Futhark

Open source alternative for GigaSpace Web UI with enhanced data querying.

Querying Knowledge Graphs by Tabular Examples

DataGridView supporting user defined search queries