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#Redirect [[DataFlex]]
'''Visual DataFlex''' is a [[programming language]] by [http://www.dataaccess.com Data Access], targeted at creating [[database]] and client-server type programs. Visual DataFlex is intended to enable developers to quickly build highly-reliable corporate software solutions and commercial application products with [[Microsoft Windows]], web and [[web services]] interfaces. A Visual DataFlex installation includes visual design tools, a comprehensive [[class_(computer science)|class]] library, a [[compiler]] & [[debugger]], an embedded database, connectivity for leading [[DBMS]]s and a scalable Web Application Server.
==Home Page==
* http://www.VisualDataFlex.Com : For a full explanation and free 30 day Studio Eval Download or the free to use Personal Edition.
Visual DataFlex is a "transparent" front end tool, being able to interface with most backend types including the included free embedded DataFlex tables, MS-SQL, IBM-DB2, and Oracle, etc.
== Architecture ==
Visual DataFlex has a 3-layer architecture:
;Bottom layer: Tables at this level represent customer information. Data dictionaries for each table define the rules for saving, editing, deleting, or finding a customer.
;Middle layer: Tables at this level represent orders to customers. A ''Data Dictionary Connectivity Object Tree'' defines how tables relate to each other, and ensures that all business rules of the connected tables are in force and validate.
;Top layer: A graphical interface ([[GUI]]) that allows users to enter, find, create, modify, or delete data.
==External links==
* http://www.visualdataflex.com
* http://www.visualdataflex.ru
* [http://www.asckey.com/ Asckey Data Services Ltd - UK Channel Partner and organiser of VDF Sig] website
* [http://www.unicorninterglobal.com/softwareproducts.asp?PageCode=100 Unicorn InterGlobal - UK Channel Partner] website
* [http://resheim.no/vdf Visual DataFlex Tools] for [[Eclipse (software)|Eclipse]] website
==Regional Users Group In Northeastern USA==
* http://www.NEDataFlex.Com : NorthEast DataFlex Consortium (USA)
==USA Instruction in Visual DataFlex==
* http://www.DataAccess.Com // Manufacturer Of Visual DataFlex
* http://www.ApplauseSoftware.Com // Online Instruction Using Your App As Material
available globally.
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[[Category:Domain-specific programming languages]]
[[Category:4GL]]
[[ms:Visual DataFlex]]
[[ru:Visual DataFlex]]
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