FoxPro

FoxPro, a procedural programming language and database management system created by Fox Software, has been widely used even before it was turned over to Visual FoxPro. It still enjoys a strong support from its community of programmers and users up to this day. FoxPro versions 2.0, 2.5 and 2.6 are compatible with Mac, DOS and Windows 3.1 to XP. Version 2.6 is compatible also with Linux and Free BSD, SCO Unix and Windows 2000. FoxPro 2 used Rushmore, an optimizing engine that used indices to look for matching expressions, to accelerate data updating and data retrieval. FoxPro 2 was built originally on Watcom C++ that has its own extensor making it the most up-to-date technology at that time. It could access expanded and extended memory making it able to utilize almost all available RAM [DOS]. If HIMEM.SYS is not loaded, FoxPro enabled a mechanism of using interrupts when extended memory driver is absent. File formats associated with FoxPro: ACT [FoxPro Documenting Wizard Action Diagram], APP [FoxPro Generated Application], DBC [FoxPro Database], DBF [Database File], DBF [FoxPro Table], DBG [FoxPro Debugger Configuration], DBT [Database Text File], DCT [FoxPro Database Memo], DCX[FoxPro Database Index], ERR [FoxPro Compilation Error], FKY [FoxPro Macro], FLL [FoxPro Dynamic Link Library], FMT [Foxpro Format File], FPT [FoxPro Table Memo], FRT [FoxPro Report Memo], FRX [FoxPro Report], FXP [FoxPro Compiled Program], LBT [FoxPro Labeled Memo], LBX [FoxPro Label File], LST [FoxPro Documenting Wizard List], MEM [FoxPro Variable File], MNX [FoxPro Menu], MPR [FoxPro Generated Menu Program], MPX [FoxPro Compiled Menu Program], NDX [dBASE Index File], PJX [FoxPro Project], PJT [FoxPro Project Memo], QPR [FoxPro Generated Query Program], QPX [FoxPro Compiled Query Program], VUE [FoxPro 2.x View Settings], WIN [FoxPro Window Settings], TBK [FoxPro Memo Backup], SPR [FoxPro Generated Screen File], SCT [FoxPro Form Memo] and SCX [FoxPro Form].

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Visual FoxPro

Visual FoxPro is the object-oriented RDBMS [relational database management system] that enables you to create desktop and Web database solutions. It provides fast application development tools to maximize productivity of applications and components for your database, powerful data management capabilities and flexibility for creating any type of database solution. Its object-oriented, data-centered language lets you create multi-layered, scalable and modern programs that combine server/client computing and the Internet. Visual FoxPro’s event and object models can quickly apply the applications that you have rapidly developed using Visual FoxPro wizards, toolbars, designers and wizards. You also have the advantage to speed up the development of your processes with Visual FoxPro’s Rushmore Query Optimization engine and object-oriented programming properties. You can create your user interface without programming requirements. You can simultaneously access database components, and trace and protect changes made to your source code using sources control programs provided by the Project Manager. You can control other applications using automation, share data and use their materials. Visual FoxPro integrates direct access to native server syntax utilizing SQL pass-through with higher level of support for updatable views of server data. PRG [Visual FoxPro Program File] is the text program file used to create Windows database programs. This file contains one to several commands that instruct Visual FoxPro to load a window or form within the program. It often has a “DO” command. It allows a program to be run within Visual FoxPro. MLB [Visual FoxPro Library] file contains an API that is specifically used for Mac to create database programs using Mac platforms only. It contains a common program code that may be accessed by multiple components of an application. VCX [Visual FoxPro Class Library] file contains a reference table of categories of objects used by Visual FoxPro database.

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