Tuesday, February 8, 2011

Definitions of Database

Field- Any number of columns regularly used for recording the same information.

Record- A group of related fields, or a single field, treated as a unit and comprising part of a file or data set, for purposes of input, processing, output, or storage by a computer.

File- A collection of related data or program records stored on some input/output or auxiliary storage medium.

Query- A user's request for information, generally as a formal request to a database or search engine.

Database- A comprehensive collection of related data organized for convenient access, generally in a computer

Report- output, especially printed, containing organized information.

DBMS- Data Base Management System: software that mediates access to, additions and deletions of, and changes in data contained in a database, so as to store and access data efficiently and control which data particular programs or individuals are allowed to use.

Data Dictionary- A data structure that stores meta-data, i.e. data about data. The term "data dictionary" has several uses. Most generally it is a set of data descriptions that can be shared by several applications. Usually it means a table in a database that stores the names, field types, length, and other characteristics of the fields in the database tables.

Data Type- A data type (or datatype) In programming, a classification identifying one of various types of data, as floating-point, integer, or Boolean, stating the possible values for that type, the operations that can be done on that type, and the way the values of that type are stored.

My database



Databases commonly used are:
Google
Yahoo
Wolfram Alpha
Oracle
Dictionary.com

No comments:

Post a Comment