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Full-stack observability with actually useful AI | Grafana Cloud
Our generous forever free tier includes the full platform, including the AI Assistant, for 3 users with 10k metrics, 50GB logs, and 50GB traces.
Built on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.
Deductive Database with Datalog, SQL, RA, TRC, DRC
The Datalog Educational System (DES) is a deductive database with Datalog, SQL, Relational Algebra, Tuple Relational Calculus and Domain Relational Calculus as query languages developed mainly for education. It can be used from most common Prolog interpreters over any supported OS and from portable executables (Windows, Linux and MacOS).
WhiteBear is a set of foundation classes for database engines written in Java. It supports object and relational database, is highly portable and may be used in embedded or server environment. Project has been created from scratch and plan to includes storage engine, server, SQL interpreter, ODBC, JDBC and JDO interface
eXist-db is a feature rich Open Source native XML database
eXist-db is a native XML database featuring efficient, index-based XQuery processing, extensions for keyword search, XUpdate support, XSLT support, XForms support, REST and tight integration with existing XML development tools. Moved to Github - https://www.github.com/exist-db/exist
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A relational database management system, based on the principles laid down in the book "Databases, Types, and The Relational Model: The Third Manifesto" by C. J. Date and Hugh Darwen.
Teiid is Enterprise Information Integration system. Teiid can virtualize and integrate data from multiple disparate information sources and provide as single Virtual DB
EyeDB is an Object Oriented Database Management System (OODBMS) providing an advanced object model (inheritance, collections, arrays, methods, triggers, constraints), an object definition language, an object query language and C++ and Java bindings.
"JDOInstruments" is programmed in JAVA. It is an Object-Oriented Database ( OODB / OODBMS )that implements JDO1.0.1 specification. It is integrated with Netbeans IDE (via Plugin module) allowing developers to build pure object-oriented systems.
Ozone is a fully featured, object-oriented database management system implemented in Java and distributed under the LGPL open source license. The ozone project aims to evolve a database system that allows developers to build pure object-oriented systems.
CLucene is a C++ port of Lucene: the high-performance, full-featured text search engine written in Java. CLucene is faster than lucene as it is written in C++.
FLEISS Frameworks is a set of programming, instrumental, application, and system frameworks to develop a free software system within an organization either non-commercial or commercial, but primarily scoping on business organizations.
Moved to sf.net/projects/cloveretl/ !!! CloverETL is a Java ETL framework which transforms structured or unstructured data. Works as a standalone application or embedded in other applications as a data transformation library of functions.
SmallSQL is a 100% pure Java DBMS, a relational database for Java desktop applications. It has a JDBC 3.0 interface and offering many ANSI SQL 92 and ANSI SQL 99 features. It is very small and fast Java library. It does not have a network interface.
OpenVista(R) is the open-source version of VistA, an enterprise grade health care information system developed by the U.S. Veterans Affairs and deployed at 1,500 global facilities. OpenVista is a registered trademark of Medsphere Systems Corporation
Biomedical Information Management System (BIMS) is a modular multilayer object - oriented software architecture, which provides a flexible computational solution to capture and manage a heterogeneous biomedical data: textual and visual information.
DruideDB is an embedded database (based on Object/XML mapping files) for Java applications. Both source code (DAO) and persistence layer (mapping) is generated. This DB stores everything as strings and handle auto-increments and multiple PKs.
A software to store, (PUT) meteorological data from complex free form text format to databases and and GET stored (and already loaded) data from databases using OPeNDAP protocol. Written using Java6, XSD, and C++. It support OPeNDAP clients thanks to
HeliDB is a database for persisting key—value pairs from Java programs. Users have many choices in configuring what features they want the database to have and in how the data is stored. Features are for instance transactions and fast B+ trees.
insideApps from determyne: Transaction-level performance monitoring for J2EE applications. Correlates and reports on transactions across HTTP server, J2EE container, and database layers. Pinpoints the source of performance issues in real time.
Very small database, forked from TinySQL (but later rewritten from scratch) for the study of good software writing and Database theory knowledge. Currently works with flat (TXT) files. Will use DBF, XLS, CSV, memory tables and SQLite formats.
XSpace is a globally accessible repository for hierarchically-keyed information. It provides persistence for trees with an elegant tree-navigation API. XSpace also publishes real-time events whenever a persisted tree is updated.