hierarchical database system

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• Database system — A database system is a term that is typically used to encapsulate the constructs of a data model, database Management system (DBMS) and database.[1] A database is an organised pool of logically related data. Data is stored within the data… …   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

• 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 — 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 model — A database model is the theoretical foundation of a database and fundamentally determines in which manner data can be stored, organized, and manipulated in a database system. It thereby defines the infrastructure offered by a particular database… …   Wikipedia

• Hierarchical model — redirects here. For the statistics usage, see hierarchical linear modeling. A hierarchical data model is a data model inwhich the data is organized into a tree like structure. The structure allows repeating information using parent/child… …   Wikipedia

• Database models — A data model is not just a way of structuring data: it also defines a set of operations that can be performed on the data. The relational model, for example, defines operations such as select, project, and join. Although these operations may not… …   Wikipedia

• database — /day teuh bays /, n. 1. a comprehensive collection of related data organized for convenient access, generally in a computer. 2. See data bank. Also, data base, data base. [1965 70; DATA + BASE1] * * * Collection of data or information organized… …   Universalium

• system — noun 1 set of ideas/rules for organizing sth ADJECTIVE ▪ current, existing ▪ We re looking to replace the existing system. ▪ modern, new ▪ old fashioned …   Collocations dictionary

• IBM Information Management System — (IMS) is a joint hierarchical database and information management system with extensive transaction processing capabilities. History IBM designed IMS with Rockwell and Caterpillar starting in 1966 for the Apollo program. IMS s challenge was to… …   Wikipedia

• File system — For library and office filing systems, see Library classification. Further information: Filing cabinet A file system (or filesystem) is a means to organize data expected to be retained after a program terminates by providing procedures to store,… …   Wikipedia