referential integrity
A feature provided by relational database management systems (RDBMS's) that prevents users or applications from entering inconsistent data. Most RDBMS's have various referential integrity rules that you can apply when you create a relationship between two tables.
For example, suppose Table B has a foreign key that points to a field in Table A. Referential integrity would prevent you from adding a record to Table B that cannot be linked to Table A. In addition, the referential integrity rules might also specify that whenever you delete a record from Table A, any records in Table B that are linked to the deleted record will also be deleted. This is called cascading delete. Finally, the referential integrity rules could specify that whenever you modify the value of a linked field in Table A, all records in Table B that are linked to it will also be modified accordingly. This is called cascading update.
referential integrity |
-
1
Consumerization of IT
Consumerization of IT is a phrase used to describe the cycle of information technology (IT) emerging in the consumer market then spreading to...
-
2
ERP - Enterprise Resource Planning
Short for enterprise resource planning, ERP is business management software that allows an organization to use a system of integrated applications...
-
-
3
ecommerce remarketing
In email and online marketing, remarketing or ecommerce remarketing refers to the techniques, strategies and often the automated email...
-
4
Mobile Device Management - MDM
Mobile device management (MDM) is a type of security software used by an IT department to monitor, manage and secure employee's mobile devices...
-
5
search engines
Search engines are programs that search documents for specified keywords and returns a list of the documents where the keywords were found.
-
6
Wi-Fi
A popular wireless networking technology that provides high-speed Internet and network connections.
-
7
mobile operating system
The mobile operating system is the software platform on top of which other programs, called application programs, can run on mobile devices.
-
8
enterprise application
An enterprise application is the term used to describe applications -- or software -- that a business would use to assist the organization in...
-
9
open source
Generically, open source refers to a program in which the source code is available to the general public for use and/or modification from its...
-
10
URL
Abbreviation of Uniform Resource Locator, the global ...
-
11
RSA Secure ID
RSA SecurID ( “SecurID”) is a two-factor authentication technology that is used to protect network resources.
Connect with Webopedia
-
-
SOHO Business Solutions: Accounting and Finance Software
Five inexpensive – or free – software packages to help SOHO owners manage the accounting and finance aspects of their business.
