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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.
Skwish is a fast, simple, lightweight Java library for storing blobs on the file system. It allows multiple concurrent readers and writers, provides all-or-nothing write semantics, and is designed to survive abnormal, unclean shutdown.
NOTE: THIS PROJECT IS UNMAINTAINED
The canonical repository for this project is now hosted on Github (https://github.com/proxool/proxool) but even that hasn't been updated since 2011.
A Java SQL Driver that provides a connection pool wrapper around another Driver of your choice. Very simple to migrate existing code. Fully configurable. Fast, mature and robust. Transparently adds connection pooling to your existing JDBC driver.
db4o is the world's leading open source object database for Java and .NET. Leverage fast native object persistence, ACID transactions, query-by-example, S.O.D.A object query API, automatic class schema evolution, small size (http://developer.db4o.com)
Deploy in 115+ regions with the modern database for every enterprise.
MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
BaseMovil is a framework for fast development of J2ME applications: a powerful J2ME database engine, a scripting engine and an ui toolkit which is fully integrated with both and allows xml view definition. The framework handles device differences/bugs.
Small, simple and robust database in Java. If you need a persistent hash map, this is for you. It is basically as fast as it gets without caching, but doesn't offer any non-basic features like transactions or concurrent access.
jMediaCat is a simple audio file catloging/database application (similar to iTunes Library or Winamp Media Library,) programmed entirely in Java. jMediaCat is meant to make searching through a large collection of digital music fast and straightforward.
Currently dead. Web-based SQL client that can connect to any number of databases using JDBC. Provides a clean, simple and fast interface using HTML and Javascript to make it very easy to run common SQL queries. Faster than your average Swing-based client
TiTLi: A Google-like, full-text search tool for relational databases. It is very fast and independent of vendor specific RDBMS's like mysql, oracle etc. It uses Apache Lucene for indexing and provides some advanced features like similarity search.
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...It's simple, easy to learn and use, comfortable. Supports connection pool, cache which supports range and conidtion. There is no transfer object and business object,no mapping. fast for huge data fetching
InstantRO is a fast application to search information about Ragnarok Online, like monsters, items, maps, cards, skills, etc. The results from your search will be instantly showed to you, with images of mobs and items.
java/jdbc command-line tools to export and import database data (formats: xml and fast-infoset (webrowset schema), csv and dml). You can synchronize changes in the webrowset document (insertRow-, modifyRow- and deleteRow-tags) back to the datasource.
Mayfly is an in-memory SQL implementation for unit testing. It is fast on small data sets and you can create or destroy a database as easily any other Java object.
Fast, easy, Java developer's tool for query building that works with Apache Derby, HSQLDB, Sql Server and other JDBC DB's. Includes a PreparedStatement Editor, Query Builder, SQL Code Generator, editor with colorful letters & more.
Java and ColdFusion libraries to lookup country code and language from IP address. It uses a local copy of the WHOIS database to perform fast, accurate lookups of country codes. Useful for log analysis, internationalization, geolocation, etc..
This is a java library to link some free country databases. With this library you can do some very fast ip<=>country resolution. You can also get informations about a county like number of inhabitants, currency.
MicroDB is a implementation of relation database in J2ME plataform. The objectives is create a partial relational database without SQL pattern, but with Object/Relation mapping. The firsts plans is storing data with fast and facility fetch and update.
Password store is a begginer end-users oriented graphic tool for storing and managing password in a secure and flexible way. It is intended to be easy and fast to use, spending not much resources.
A Fast, Lightweight, Efficient, Application (FLEA) providing a GUI front-end for any JDBC database. It's main purpose it to provide developers quick ways to interact with databases.
A complete, fast, previously commercial, JDO 1.0.1 implementation for databases, opened by Versant in 2005 and then abandoned in early 2006. The design-time code is already in Eclipse Dali. This project is the original source drop, including the runtime.
JDBM is a transactional persistence engine for Java. It aims to be for Java what GDBM is for Perl, Python, C, etcetera: a simple persistence engine that is lightweight and fast.
Note that JDBM's development has moved on to github - https://github.com/jankotek/JDBM3 is now the new home.
JSpeed -- Java-based Open-Source Embedded Database Management System supporting network database model with limited relational access. JSpeed's goal is to provide a high-speed embedded database written in 100 percent Java. Key management uses EP-Tree.
Eclipse Documentum DQL/API plug-in with the main functionality of content proposals and colour coding. As a secondary result testing things the plug-in is starting to resemble a fast hard client. A feature we lost when a certain hard client was replaced.
Gemello is a relational database written in pure Java. Its design is aimed at teaching. If you're searching for a fast relational engine, Gemello won't be a good choice. Is's rather a good and simple example of relational database implementation.