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Aria (storage Engine)
Aria is a storage engine for the MariaDB and MySQL relational database management systems. Its goal is to make a crash-safe alternative to MyISAM. It is not transactional. Aria has been in development since 2007 and was first announced by Michael "Monty" Widenius on his blog. Aria is used for internal temporary tables in MariaDB, a community-developed branch of the MySQL database led by Widenius. Aria is not shipped with MySQL or Percona Server. The Maria project is hosted on Launchpad. Aria was initially named "Maria", as a reference to Monty's youngest child. It was renamed Aria in 2010 to avoid confusion with the main database it is developed for, MariaDB. Chris Tooley, who won a contest to suggest the name, wrote, "Aria is Maria without the 'M'; also it is a pleasant musical term." Features Aria is very similar to MyISAM, but its purpose is to be a crash-safe alternative to MyISAM. Aria does not support foreign keys and, currently, transactions. Aria supports: * Ful ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monty Program Ab
Monty is a masculine given name, often a short form of Montgomery, Montague and other similar names. It is also a surname. Notable people with the name or nickname include: First name Nickname *Bernard Montgomery (1887–1976), British Second World War field marshal *Bruce Montgomery (musical director) (1927–2008), American music composer and former director of the Penn Glee Club *Chris Montgomery (born 1972), American computer specialist and founder of the Xiph.Org Foundation *Colin Montgomerie (born 1963), Scottish golfer *Monty Montgomery (American football) (born 1973), former American football cornerback * Richard Montgomerie (1999–2007), Sussex cricketer * Monty Basgall (1922–2005), American Major League Baseball player and coach *Monty Berman (1905–2006), British cinematographer and film and television producer *Monty Bowden (1865–1892), English cricketer and wicket-keeper *Monty Burton (1918–1999), British pilot *Montgomery Clift (1920–1966), American acto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aria
In music, an aria (Italian: ; plural: ''arie'' , or ''arias'' in common usage, diminutive form arietta , plural ariette, or in English simply air) is a self-contained piece for one voice, with or without instrumental or orchestral accompaniment, normally part of a larger work. The typical context for arias is opera, but vocal arias also feature in oratorios and cantatas, or they can be stand-alone concert arias. The term was originally used to refer to any expressive melody, usually, but not always, performed by a singer. Etymology The Italian term ''aria'', which derives from the Greek ἀήρ and Latin ''aer'' (air), first appeared in relation to music in the 14th century when it simply signified a manner or style of singing or playing. By the end of the 16th century, the term 'aria' refers to an instrumental form (cf. Santino Garsi da Parma lute works, 'Aria del Gran Duca'). By the early 16th century it was in common use as meaning a simple setting of strophic poetry; me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Google Videos
Google Search (also known simply as Google) is a search engine provided by Google. Handling more than 3.5 billion searches per day, it has a 92% share of the global search engine market. It is also the List of most visited websites, most-visited website in the world. The order of search results returned by Google is based, in part, on a priority rank system called "PageRank". Google Search also provides many different options for customized searches, using symbols to include, exclude, specify or require certain search behavior, and offers specialized interactive experiences, such as flight status and package tracking, weather forecasts, currency, unit, and time conversions, word definitions, and more. The main purpose of Google Search is to search for text in publicly accessible documents offered by web servers, as opposed to other data, such as Image search, images or Database search engine, data contained in databases. It was originally developed in 1996 by Larry Page, Serg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
XtraDB
Percona XtraDB is a storage engine for the MariaDB and Percona Server databases, and is intended as a drop-in replacement to InnoDB, which is the default engine in MySQL MySQL () is an open-source relational database management system (RDBMS). Its name is a combination of "My", the name of co-founder Michael Widenius's daughter My, and "SQL", the acronym for Structured Query Language. A relational database .... Up until version 10.1, MariaDB used Percona XtraDB in place of InnoDB as the default storage engine. As of MariaDB 10.2, InnoDB is the default again. XtraDB incorporates InnoDB's ACID-compliant design and MVCC architecture, and allows for a greater degree of tuning and scalability. The engine is also better suited to multi-core processing, which addresses some of the issues known to InnoDB. References External links * {{MySQL Database engines MySQL MariaDB ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
InnoDB
InnoDB is a database engine, storage engine for the database management system MySQL and MariaDB. Since the release of MySQL 5.5.5 in 2010, it replaced MyISAM as MySQL's default table type. It provides the standard ACID-compliant Database transaction, transaction features, along with foreign key support (Declarative Referential Integrity). It is included as standard in most binaries distributed by MySQL AB, the exception being some Original equipment manufacturer, OEM versions. Description InnoDB became a product of Oracle Corporation after its acquisition of the Finland-based company Innobase in October 2005. The software is dual licensed; it is distributed under the GNU General Public License, but can also be licensed to parties wishing to combine InnoDB in proprietary software. InnoDB supports: * Both SQL and X/Open XA, XA Database transaction, transactions * Tablespaces * Foreign keys * Full text search indexes, since MySQL 5.6 (February 2013) and MariaDB 10.0 * Spatial oper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Falcon (storage Engine)
Falcon is a discontinued transactional storage engine being developed for the MySQL relational database management system. Development was stopped after Oracle purchased MySQL. It was based on the Netfrastructure database engine. Falcon was designed to take advantage of Sun's ZFS file system. Architecture analysis showed an interesting mixture of possible performance properties, while low level benchmarks on the first alpha release in 5.1.14-falcon showed that Falcon performed differently from both InnoDB and MyISAM. It did better in several tests, worse in others, with inefficient support for the MySQL LIMIT operation a limitation. Its biggest advantage though is known to be ease of use; Falcon requires minimum maintenance and designed to reconfigure itself automatically to handle all types of loads efficiently. See also *InnoDB *ISAM *MyISAM *XtraDB Percona XtraDB is a storage engine for the MariaDB and Percona Server databases, and is intended as a drop-in replacement ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual Column
In relational databases a virtual column is a table column whose value is automatically computed using other columns values, or another deterministic expression. Virtual columns are defined of SQL:2003 as Generated Column, and are only implemented by some DBMSs, like MariaDB, SQL Server, Oracle, PostgreSQL, SQLite and Firebird (database server) (COMPUTED BY syntax). Implementation There are two types of virtual columns: * Virtual columns; * Persistent columns. Virtual columns values are computed ''on the fly'' when needed, for example when they are returned by a SELECT statement. Persistent column values are computed when a row is inserted in a table, and they are written like all other values. They can change if other values change. Both virtual and persistent columns have advantages and disadvantages: virtual columns don't consume space on the disk, but they must be computed every time a query refers to them; persistent columns don't require any CPU time, but they consume dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OpenGIS
The Open Geospatial Consortium (OGC), an international voluntary consensus standards organization for geospatial content and location-based services, sensor web and Internet of Things, GIS data processing and data sharing. It originated in 1994 and involves more than 500 commercial, governmental, nonprofit and research organizations in a consensus process encouraging development and implementation of open standards. History A predecessor organization, OGF, the Open GRASS Foundation, started in 1992. From 1994 to 2004 the organization also used the name Open GIS Consortium. The OGC website gives a detailed history of the OGC. Standards Most of the OGC standards depend on a generalized architecture captured in a set of documents collectively called the ''Abstract Specification'', which describes a basic data model for representing geographic features. Atop the Abstract Specification members have developed and continue to develop a growing number of specifications, or ''sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fulltext
In text retrieval, full-text search refers to techniques for searching a single computer-stored document or a collection in a full-text database. Full-text search is distinguished from searches based on metadata or on parts of the original texts represented in databases (such as titles, abstracts, selected sections, or bibliographical references). In a full-text search, a search engine examines all of the words in every stored document as it tries to match search criteria (for example, text specified by a user). Full-text-searching techniques became common in online bibliographic databases in the 1990s. Many websites and application programs (such as word processing software) provide full-text-search capabilities. Some web search engines, such as AltaVista, employ full-text-search techniques, while others index only a portion of the web pages examined by their indexing systems. Indexing When dealing with a small number of documents, it is possible for the full-text-search engine t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foreign Key
A foreign key is a set of attributes in a table that refers to the primary key of another table. The foreign key links these two tables. Another way to put it: In the context of relational databases, a foreign key is a set of attributes subject to a certain kind of inclusion dependency constraints, specifically a constraint that the tuples consisting of the foreign key attributes in one relation, R, must also exist in some other (not necessarily distinct) relation, S, and furthermore that those attributes must also be a candidate key in S. In simpler words, a foreign key is a set of attributes that ''references'' a candidate key. For example, a table called TEAM may have an attribute, MEMBER_NAME, which is a foreign key referencing a candidate key, PERSON_NAME, in the PERSON table. Since MEMBER_NAME is a foreign key, any value existing as the name of a member in TEAM must also exist as a person's name in the PERSON table; in other words, every member of a TEAM is also a PERSON. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Launchpad (website)
Launchpad is a web application and website that allows users to develop and maintain software, particularly open-source software. It is developed and maintained by Canonical Ltd. On 21 July 2009, the source code was released publicly under the GNU Affero General Public License. , the Launchpad repository hosts more than 40,000 projects. The domain ''launchpad.net'' attracted 1 million visitors by August 2009 according to a Compete.com survey. Components It has several parts: * Answers: a community support site and knowledge base. * Blueprints: a system for tracking new features. * Bugs: a bug tracker that allows bugs to be tracked in multiple contexts (e.g. in an Ubuntu package, as an upstream, or in remote bug trackers). * Code: source code hosting, with support for the Bazaar and Git version control systems. * Translations: a site for localising applications into different languages. A significant but less visible component is Soyuz, "the distribution management portion of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Database Engine
A database engine (or storage engine) is the underlying software component that a database management system (DBMS) uses to create, read, update and delete (CRUD) data from a database. Most database management systems include their own application programming interface (API) that allows the user to interact with their underlying engine without going through the user interface of the DBMS. The term "database engine" is frequently used interchangeably with "database server" or "database management system". A "database instance" refers to the processes and memory structures of the running database engine. Storage engines Many of the modern DBMS support multiple storage engines within the same database. For example, MySQL supports InnoDB as well as MyISAM. Some storage engines are transactional. Additional engine types include: *Embedded database engines *In-memory database engines Design considerations Information in a database is stored as bits laid out as data structures in s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
