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Scooped by
Mickael Ruau
March 17, 2013 5:40 AM
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Virtuoso Universal Server is a middleware and database engine hybrid that combines the functionality of a traditional RDBMS, ORDBMS, virtual database, RDF, XML, free-text, web application server and file server functionality in a single system. Rather than have dedicated servers for each of the aforementioned functionality realms, Virtuoso is a "universal server"; it enables a single multithreaded server process that implements multiple protocols. The open source edition of Virtuoso Universal Server is also known as OpenLink Virtuoso. The software has been developed by OpenLink Software with Kingsley Uyi Idehen and Orri Erling as the chief software architects.
Virtuoso provides an extended object-relational model, which combines the flexibility of relational access with inheritance, run time data typing, late binding, and identity based access. Virtuoso Universal Server database includes physical file and in memory storage and operating system processes that interact with the storage. There is one main process, which has listeners on a specified port for HTTP, SOAP, and other protocols.
Virtuoso is designed to take advantage of operating system threading support and multiple CPUs. It consists of a single process with an adjustable pool of threads shared between clients. Multiple threads may work on a single index tree with minimal interference with each other. One cache of database pages is shared among all threads and old dirty pages are written back to disk as a background process.
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Scooped by
Mickael Ruau
March 17, 2013 5:37 AM
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CUBRID (pron.: /ˈkjuːbrɪd/ "cube-rid") is an open source SQL based relational database management system (RDBMS) with object extensions[3] developed by NHN Corporation for web applications.[4] The name CUBRID is a combination of the two words cube and bridge, cube standing for a sealed box that provides security for it's contents while bridge standing for data bridge.[citation needed]
CUBRID has a separate license for its server engine and its interfaces. The server engine adopts the GPL v2.0 or later license, which allows distribution, modification, and acquisition of the source code. CUBRID APIs and GUI tools have the Berkeley Software Distribution license in which there is no obligation of opening derivative works. The reason of adopting two separate license systems is to provide complete freedom to Independent software vendors (ISV) to develop and distribute CUBRID based applications.[5]
The feature that distinguishes CUBRID Database from other relational database systems is its 3-tier client-server architecture[6] which consists of the database server, the connection broker[7] and the application layer.
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Scooped by
Mickael Ruau
March 17, 2013 5:36 AM
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Xeround is an elastic, always-on cloud database that lets you run your MySQL applications in the cloud, with auto scaling and high availability.
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Scooped by
Mickael Ruau
March 15, 2013 6:43 AM
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Le blog d'OCTO Technology, cabinet d'architectes en systèmes d'information
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Scooped by
Mickael Ruau
March 15, 2013 6:37 AM
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DataCleaner est un outil d'analyse de données versatile, complet et efficace. Il vous permet d'analyser, de nettoyer, de transformer et de profiler le contenu des tables de vos bases de données. L...
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Scooped by
Mickael Ruau
March 15, 2013 6:36 AM
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Vous utilisez phpMyAdmin (que Dieu vous pardonne!) et vos imports s'arrêtent en plein milieu parce que vous rencontrez un timeout? Vous utilisez le client MySQL et la connection vous reliant au se...
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Scooped by
Mickael Ruau
March 15, 2013 6:34 AM
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Those who have used PostgresSQL usually gets lazy when write the SQL code to auto-numeric fields, but we miss that feature when we are in a MySQL database. As we know, MySQL have auto-increment fie...
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Scooped by
Mickael Ruau
March 15, 2013 6:32 AM
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Understanding SQL's underlying theory is the best way to guarantee that your SQL code is correct and your database schema is robust and maintainable. In SQL and Relational Theory, author C.J.
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Scooped by
Mickael Ruau
March 15, 2013 6:31 AM
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I recently returned to
SQL and Relational
Theory: How to Write Accurate SQL Code
by C.J.
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Scooped by
Mickael Ruau
March 15, 2013 6:30 AM
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Results returned from an InnoDB full-text search query are often extremely different from those returned by MyISAM.
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Scooped by
Mickael Ruau
March 15, 2013 6:29 AM
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What impact does the number of processor cores have on different memory allocators and what difference we will see in MySQL performance in this scenario?
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Scooped by
Mickael Ruau
March 15, 2013 6:28 AM
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While preparing the webinar I will deliver this Friday, I run into a quite interesting optimizer issue, related to the Index Condition Pushdown (ICP).
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Scooped by
Mickael Ruau
March 15, 2013 6:27 AM
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Scooped by
Mickael Ruau
March 17, 2013 5:38 AM
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Scooped by
Mickael Ruau
March 17, 2013 5:37 AM
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Need a free cloud database? Xeround’s powerful MySQL database service is free. Ensure high availability and auto-scaling for your DB with 1-click.
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Scooped by
Mickael Ruau
March 15, 2013 6:43 AM
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Le blog d'OCTO Technology, cabinet d'architectes en systèmes d'information
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Scooped by
Mickael Ruau
March 15, 2013 6:38 AM
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open source software for data quality, data profiling, data warehousing, master data management, business intelligence, corporate performance management
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Scooped by
Mickael Ruau
March 15, 2013 6:37 AM
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Le blog d'OCTO Technology, cabinet d'architectes en systèmes d'information
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Scooped by
Mickael Ruau
March 15, 2013 6:34 AM
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From command line we have the entire MySQL server on hands (if we have privileges too of course) but we don’t have a overall overview, at this point the show table status command is every use...
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Scooped by
Mickael Ruau
March 15, 2013 6:32 AM
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Je suis tombé par hasard sur un excellent blogue (en anglais malheureusement), Fatal Exception, principalement dédié à MySQL et qui explique en détail 2 procédures stockées qui pourraient grandemen...
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Scooped by
Mickael Ruau
March 15, 2013 6:32 AM
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Scooped by
Mickael Ruau
March 15, 2013 6:30 AM
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Scooped by
Mickael Ruau
March 15, 2013 6:29 AM
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InnoDB Full-text Search (FTS) in MySQL 5.6: An overview of FTS in InnoDB and observations made while getting it configured. By Percona's Ernie Souhrada.
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Scooped by
Mickael Ruau
March 15, 2013 6:29 AM
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Scooped by
Mickael Ruau
March 15, 2013 6:27 AM
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