To date, humanity has accumulated a truly huge amount of information about objects and phenomena.But this information is not dead weight, it is stored electronically and is used in databases.Databases - is part of the information systems - software and hardware offering storage and processing of huge data arrays.
database is a certain way a structured collection of data stored together and processed in accordance with certain rules.Typically, database models a certain domain or fragment thereof.Very often, as a permanent repository of information databases act files.
program producing manipulate information in a database, called DBMS (database management system).It can carry out sampling according to various criteria, and display the requested information in a form that is convenient to the user.The main components of information systems that are based on the databases are database files, databases and software (client applications), allowing the user to manipulate the information and do the nece
ssary to attain its objectives actions.
structuring information made by characteristic features, physical and technical parameters of abstract objects that are stored in the database.The information in the database can be presented as text, raster or vector image, table, or object-oriented model.Structuring information allows analysis and processing: to do custom queries, sampling, sorting, perform mathematical and logical operations.
information that is stored in a database can be constantly updated.From how often this is done depends on its relevance.For information about the objects can also be modified and supplemented.
Databases, as a way to store large amounts of information and the effective manipulation of it are used in virtually all areas of human activity.They contain documents, images, information about the objects of real estate, natural and legal persons.There are legal database, road, address and so on.
Databases used in information systems, such as those that allow to provide monitoring and control of territories at the state level.The database of such systems are stored information on all real property located in these areas: Land, vegetation, buildings, hydrography, roads and so forth. Databases allow you to analyze the information and to manage the information flow, to use them for statistics, forecasting and accounting.
- What are database