Free universal database tool and SQL client

QuestDB is a high performance, open-source, time-series database

The official home of the Presto distributed SQL query engine for big data

Graphs for Everyone

Apache Hadoop

Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

OpenRefine is a free, open source power tool for working with messy data and improving it

The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance …

Apache Iceberg

1️⃣🐝🏎️ The One Billion Row Challenge -- A fun exploration of how quickly 1B rows from a text file can be aggregated with Java

Web-based notebook that enables data-driven, interactive data analytics and collaborative documents with SQL, Scala and more.

RStudio is an integrated development environment (IDE) for R

Apache Avro is a data serialization system.

The ToroDB solution to provide better analytics on top of MongoDB and make it easier to migrate from MongoDB to SQL

Automated testing to find logic and performance bugs in database systems

Code Examples for Oracle AI Database

Apache XTable (incubating) is a cross-table converter for lakehouse table formats that facilitates interoperability across data processing systems and query engines.

Apache ORC - the smallest, fastest columnar storage for Hadoop workloads

Deephaven Community Core

Cypher Shell has moved to https://github.com/neo4j/neo4j

Machine Learning Procedures and Functions for Neo4j