logical database

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• Database — A database is an organized collection of data for one or more purposes, usually in digital form. The data are typically organized to model relevant aspects of reality (for example, the availability of rooms in hotels), in a way that supports… …   Wikipedia

• Database design — is the process of producing a detailed data model of a database. This logical data model contains all the needed logical and physical design choices and physical storage parameters needed to generate a design in a Data Definition Language, which… …   Wikipedia

• Logical Information Machines — (LIM) markets [http://www.historisdatabase.com Historis] , a time series database and the [http://www.lim.com Market Information Machine (MIM)] a database that is built around Historis, and includes data and a near English query language.The… …   Wikipedia

• Logical security — consists of software safeguards for an organization’s systems, including user ID and password access, authentication, access rights and authority levels. These measures are to ensure that only authorized users are able to perform actions or… …   Wikipedia

• Database administration and automation — Database administration is the function of managing and maintaining database management systems (DBMS) software. Mainstream DBMS software such as Oracle, IBM DB2 and Microsoft SQL Server need ongoing management. As such, corporations that use… …   Wikipedia

• Database virtualization — is the decoupling of the database layer, which lies between the storage and application layers within the application stack. Virtualization at the database layer allows hardware resources to be extended to allow for better sharing resources… …   Wikipedia

• Database management system — A database management system (DBMS) is a software package with computer programs that control the creation, maintenance, and the use of a database. It allows organizations to conveniently develop databases for various applications by database… …   Wikipedia

• Logical data model — A logical data model also referred to as LDM in computer science is a representation of an organization s data, organized in terms of a particular data management technology. When ANSI first laid out the idea of a logical schema (in 1975 [1] ),… …   Wikipedia

• Database normalization — In the design of a relational database management system (RDBMS), the process of organizing data to minimize redundancy is called normalization. The goal of database normalization is to decompose relations with anomalies in order to produce… …   Wikipedia

• Database schema — A depiction of MediaWiki database schema. A database schema (pronounced skee ma, /ˈski.mə/) of a database system is its structure described in a formal language supported by the database management system (DBMS) and refers to the organization of… …   Wikipedia

• Logical conjunction — ∧ redirects here. For exterior product, see exterior algebra. Venn diagram of …   Wikipedia