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Db4o (object Database)
db4o (database for objects) was an embeddable open-source object database for Java and .NET developers. It was developed, commercially licensed and supported by Actian. In October 2014, Actian declined to continue to actively pursue and promote the commercial db4o product offering for new customers. History The term object-oriented database system dates back to around 1985, though the first research developments in this area started during the mid-1970s. The first commercial object database management systems were created in the early 1990s; these added the concept of native database driven persistence into the field of object-oriented development. The second wave of growth was observed in the first decade of the 21st century, when object-oriented databases written completely in an object-oriented language appeared on the market. db4o is one of the examples of such systems written completely in Java and C#. The db4o project was started in 2000 by chief architect Carl Rosenb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actian
Actian is a computer software company headquartered in Sunnyvale, California that provides data management software. In July 2018, Actian was acquired by HCL Technologies and Sumeru Equity Partners for $330 million. On December 31, 2021, HCL Technologies became the sole owner of Actian. Actian was founded in 2005, as a private equity funded spin-out of the Ingres product line from Computer Associates, and developed data management and integration technologies, including Vectorwise, Btrieve/Pervasive PSQL, and the Ingres database. History Ingres Ingres was developed at the University of California, Berkeley and commercialized by Relational Technology Inc. After a course of name changes and acquisitions, including VectorWise BV, Versant, Pervasive, and ParAccel, Actian came into existence as a multinational software firm. Relational Technology, Incorporated (RTI), was founded in 1980 by Michael Stonebraker and Eugene Wong, and professor Lawrence A. Rowe to commerciali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EJB QL
EJB QL or EJB-QL is a portable database query language for Enterprise Java Beans. It was used in Java EE applications. Compared to SQL, however, it is less complex but less powerful as well. History The language has been inspired, especially EJB3-QL, by the native Hibernate Query Language HQL. In EJB3 It has been mostly replaced by the Java Persistence Query Language. Differences EJB QL is a database query language similar to SQL. The used queries are somewhat different from relational SQL, as it uses a so-called "abstract schema" of the enterprise beans instead of the relational model. In other words, EJB QL queries do not use tables and their components, but enterprise beans, their persistent state, and their relationships. The result of an SQL query is a set of rows with a fixed number of columns. The result of an EJB QL query is either a single object, a collection of entity objects of a given type, or a collection of values retrieved from CMP fields. One has to understand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Search Engine Indexing
Search engine indexing is the collecting, parsing, and storing of data to facilitate fast and accurate information retrieval. Index design incorporates interdisciplinary concepts from linguistics, cognitive psychology, mathematics, informatics, and computer science. An alternate name for the process, in the context of search engines designed to find web pages on the Internet, is ''web indexing''. Popular engines focus on the full-text indexing of online, natural language documents. Media types such as pictures, video, audio, and graphics are also searchable. Meta search engines reuse the indices of other services and do not store a local index whereas cache-based search engines permanently store the index along with the corpus. Unlike full-text indices, partial-text services restrict the depth indexed to reduce index size. Larger services typically perform indexing at a predetermined time interval due to the required time and processing costs, while agent-based search engines ind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
InterSystems
InterSystems Corporation is a privately held vendor of software systems and technology for high-performance database management, rapid application development, integration, and healthcare information systems. The vendor's products includInterSystems IRIS Data Platform Caché Database Management System, the InterSystems Ensemble integration platform, the HealthShare healthcare informatics platform and TrakCare healthcare information system, which is sold outside the United States. InterSystems is based in Cambridge, Massachusetts. The company's revenue was $727 million in 2019. History InterSystems was founded in 1978 by Phillip T. (Terry) Ragon, its current CEO. The firm was one of the vendors of M-technology (aka MUMPS) systems, with a product called ISM-11 (an DSM-11 clone) for the DEC PDP-11 . Over the years, it acquired several other MUMPS implementations: DTM from Data Tree (1993); DSM from Digital (1995); and MSM from Micronetics (1998); making InterSystems the do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matisse Software
Henri Émile Benoît Matisse (; 31 December 1869 – 3 November 1954) was a French visual artist, known for both his use of colour and his fluid and original draughtsmanship. He was a drawing, draughtsman, printmaking, printmaker, and sculpture, sculptor, but is known primarily as a painter. Matisse is commonly regarded, along with Pablo Picasso, as one of the artists who best helped to define the revolutionary developments in the visual arts throughout the opening decades of the twentieth century, responsible for significant developments in painting and sculpture. The intense colourism of the works he painted between 1900 and 1905 brought him notoriety as one of the Fauvism, Fauves (French language, French for "wild beasts"). Many of his finest works were created in the decade or so after 1906, when he developed a rigorous style that emphasised flattened forms and decorative pattern. In 1917, he relocated to a suburb of Nice on the French Riviera, and the more relaxed style of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Objectivity/DB
Objectivity/DB is a commercial object database produced by Objectivity, Inc. It allows applications to make standard C++, C#, Java, or Python objects persistent without having to convert the data objects into the rows and columns used by a relational database management system (RDBMS). Objectivity/DB supports the most popular object oriented languages plus SQL/ODBC and XML. It runs on Linux, Macintosh, UNIX and Windows platforms. All of the languages and platforms interoperate, with the Objectivity/DB kernel taking care of compiler and hardware platform differences. History Objectivity/DB was first sold in 1990. The C++ and Java interfaces for Objectivity/DB incorporate the features defined in the ODMG'93 standard. The C# and Python interfaces were added subsequently. Architectural features Objectivity/DB is a distributed database that provides a single logical view across a federation of databases distributed across the network. It uses a distributed computing model t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Database Query Language
Query languages, data query languages or database query languages (DQL) are computer languages used to make queries in databases and information systems. A well known example is the Structured Query Language (SQL). Types Broadly, query languages can be classified according to whether they are database query languages or information retrieval query languages. The difference is that a database query language attempts to give factual answers to factual questions, while an information retrieval query language attempts to find documents containing information that is relevant to an area of inquiry. Other types of query languages include: * Full-text. The simplest query language is treating all terms as bag of words that are to be matched with the postings in the inverted index and where subsequently ranking models are applied to retrieve the most relevant documents. Only tokens are defined in the CFG. Web search engines often use this approach. * Boolean. A query language that also s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Relational Model
The relational model (RM) is an approach to managing data using a Structure (mathematical logic), structure and language consistent with first-order logic, first-order predicate logic, first described in 1969 by English computer scientist Edgar F. Codd, where all data is represented in terms of tuples, grouped into relation (database), relations. A database organized in terms of the relational model is a relational database. The purpose of the relational model is to provide a Declarative programming, declarative method for specifying data and queries: users directly state what information the database contains and what information they want from it, and let the database management system software take care of describing data structures for storing the data and retrieval procedures for answering queries. Most relational databases use the SQL data definition and query language; these systems implement what can be regarded as an engineering approximation to the relational model. A ''t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Backup
In information technology, a backup, or data backup is a copy of computer data taken and stored elsewhere so that it may be used to restore the original after a data loss event. The verb form, referring to the process of doing so, is "back up", whereas the noun and adjective form is " backup". Backups can be used to recover data after its loss from data deletion or corruption, or to recover data from an earlier time. Backups provide a simple form of disaster recovery; however not all backup systems are able to reconstitute a computer system or other complex configuration such as a computer cluster, active directory server, or database server. A backup system contains at least one copy of all data considered worth saving. The data storage requirements can be large. An information repository model may be used to provide structure to this storage. There are different types of data storage devices used for copying backups of data that is already in secondary storage onto archive fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OLAP
Online analytical processing, or OLAP (), is an approach to answer multi-dimensional analytical (MDA) queries swiftly in computing. OLAP is part of the broader category of business intelligence, which also encompasses relational databases, report writing and data mining. Typical applications of OLAP include business reporting for sales, marketing, management reporting, business process management (BPM), budgeting and forecasting, financial reporting and similar areas, with new applications emerging, such as agriculture. The term ''OLAP'' was created as a slight modification of the traditional database term online transaction processing (OLTP). OLAP tools enable users to analyze multidimensional data interactively from multiple perspectives. OLAP consists of three basic analytical operations: consolidation (roll-up), drill-down, and slicing and dicing.O'Brien, J. A., & Marakas, G. M. (2009). Management information systems (9th ed.). Boston, MA: McGraw-Hill/Irwin. Consolidatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reporting Tool
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Reporting may refer to * any activity that leads to reports * in particular business reporting *Data reporting * Sustainability reporting *Financial reporting * international reporting of financial information for tax purposes under the OECD's Common Reporting Standard *Journalism *Court reporting * Traffic reporting *Beat reporting *Operational reporting In data processing operational reporting is reporting about operational details that reflects current activity. Operational reporting is intended to support the day-to-day activities of the organization. "Examples of operational reporting include b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Language Integrated Query
Language Integrated Query (LINQ, pronounced "link") is a Microsoft .NET Framework component that adds native data querying capabilities to .NET languages, originally released as a major part of .NET Framework 3.5 in 2007. LINQ extends the language by the addition of query expressions, which are akin to SQL statements, and can be used to conveniently extract and process data from arrays, enumerable classes, XML documents, relational databases, and third-party data sources. Other uses, which utilize query expressions as a general framework for readably composing arbitrary computations, include the construction of event handlers or monadic parsers. It also defines a set of method names (called ''standard query operators'', or ''standard sequence operators''), along with translation rules used by the compiler to translate query syntax expressions into expressions using fluent-style (called method syntax by Microsoft) with these method names, lambda expressions and anonymous types. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
