Paradox (database)

ParadoxBorland ParadoxParadox DatabaseParadox 386Paradox fileParadox relational databaseParadox/BDE
Paradox is a relational database management system currently published by Corel Corporation.wikipedia
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Microsoft Access

AccessMS AccessAccess 2000
dBase product line; A Windows version was planned for release by Borland in 1992, but was delayed until January 1993, by which time Microsoft's Access for Windows was available.
Prior to the introduction of Access, Borland (with Paradox and dBase) and Fox (with FoxPro) dominated the desktop database market.

Robert Shostak

Paradox for DOS was a relational database management system originally written by Richard Schwartz and Robert Shostak, and released by their Belmont, California-based company Ansa Software in 1985.
He is also known for co-authoring the Paradox Database, and most recently, the founding of Vocera Communications, a company that makes wearable, Star Trek-like communication badges.

Borland

Borland InternationalBorland Software CorporationSegue Software
It was originally released for MS-DOS by Ansa Software, and then updated by Borland after it bought the company.
In September 1987 Borland purchased Ansa-Software, including their Paradox (version 2.0) database management tool.

Ashton-Tate

Ashton Tate
In mid 1991 Borland began the process to acquire Ashton-Tate and its competing
Borland had been marketing the Paradox database specifically to compete with dBASE, and its programmers considered their system to be far superior to dBASE.

Quattro Pro

QuattroQuattro Pro for WindowsBorland Quattro
Both Paradox for Windows and Quattro Pro for Windows, a closely related project, started development using beta versions of Windows 3.0, in the spring of 1990.
Both the QPW and Paradox for Windows codebases (the latter being another Borland database application) were based on Borland's internal pilot project with object oriented UI code for Windows.

ObjectPAL

Paradox for Windows applications are programmed in a different programming language called ObjectPAL.
ObjectPAL is short for Object-Oriented Paradox Application Language, which is the programming language used by the Borland Paradox database application (now owned by Corel).

WordPerfect

WordPerfect OfficeWordPerfect CorporationCorel WordPerfect Office
Paradox was also bundled in the professional version of Corel's WordPerfect Office suite.
The offerings were marketed as Borland Office, containing Windows versions of WordPerfect, Quattro Pro, Borland Paradox, and a LAN-based groupware package called WordPerfect Office.

Corel

Corel CorporationCorel CorpCorel Corpororation
Paradox is a relational database management system currently published by Corel Corporation.

Relational database

relational database management systemRDBMSrelational databases
Paradox for DOS was a relational database management system originally written by Richard Schwartz and Robert Shostak, and released by their Belmont, California-based company Ansa Software in 1985. Paradox is a relational database management system currently published by Corel Corporation.

MS-DOS

DOSMS-DOS 5.0MS-DOS 6.0
It was originally released for MS-DOS by Ansa Software, and then updated by Borland after it bought the company.

Extended memory

XMSExtended Memory SpecificationEMS
Version 4.0 and 4.5 were retooled in the Borland C++ windowing toolkit and used a different extended memory access scheme.

DBase

dBase IIdBase IIIDBF
At that time, dBase and its xBase clones (Foxpro, Clipper) dominated the market.

XBase

At that time, dBase and its xBase clones (Foxpro, Clipper) dominated the market.

Visual FoxPro

FoxProMicrosoft Visual FoxProFoxBase
At that time, dBase and its xBase clones (Foxpro, Clipper) dominated the market.

Clipper (programming language)

ClipperCA-ClipperCLIPPER 5.3
At that time, dBase and its xBase clones (Foxpro, Clipper) dominated the market.

Clarion (programming language)

ClarionClarion Programming Language
Other notable competitors were Clarion, DataEase, R:Base, and DataFlex.

DataEase

Datamaster (database management system)
Other notable competitors were Clarion, DataEase, R:Base, and DataFlex.

R:Base

MicrorimRIM
Other notable competitors were Clarion, DataEase, R:Base, and DataFlex.

DataFlex

Visual DataFlexData Access Worldwide
Other notable competitors were Clarion, DataEase, R:Base, and DataFlex.

Query by Example

a row in the desired results of a queryQBEQ'''uery '''B'''y '''E'''xample
Although key features of the DOS product, the QBE and the database engine, were ports keeping the DOS code, there was a major break in compatibility from PAL to ObjectPAL and in the shift to a GUI design metaphor for Forms and Reports.

Expanded memory

EMSExpanded Memory Specificationexpanded memory manager