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Databases: General
Uploaded: 22.01.2011
Content: text 42 symbols
Product description
Database (DB) - structured organized set of data describing the characteristics of any physical or virtual system.
"Database" is often mistakenly referred to as simplified or database management system (DBMS). It is necessary to distinguish the collection of data (the actual database) and software designed for organizing and maintaining database (DBMS).
Organization of the database structure is formed on the basis of the following considerations:
1. adequately describe the object / system - at the level of conceptual and logical model.
2. Ease of use for record keeping and analysis of data - at the level of so-called physical model.
At the level of the physical model of an electronic database is a file or a set format TXT, CSV, Excel, DBF, XML, or in a special format specific DBMS. Also in the database in the concept of a physical model include specialized virtual concepts that exist within it - the table, the table space segment, cube, cluster and so on. D.
Currently, the most widely used relational databases. Card indexes used before the advent of electronic databases. The network and hierarchical database are considered obsolete, object-oriented is not standardized and are not widespread. Some revival received hierarchical database in connection with the emergence and spread of XML.
Additional information
1. Data Binding in Windows Forms
2. Databases on the Internet: A practical guide to creating Web-based applications
3. Efficient database
4. Introduction to Database Systems
5. Design of relational databases.
6. Databases. Textbook for high schools
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