RDBMS

Relational database management systems

SQL interface

• ADABAS D
• Gupta SQLBase
• IBM OS/2 Database Manager - part of Extended Edition or OS/2 Extended Services with DBM
• IBM DATABASE2 for OS/2
• IBM DB2 UDB
• Ingres
• Microsoft SQL Server
• MySQL
• PostgreSQL
• Oracle Server
• SQLite
• Watcom SQL / Sybase SQL Anywhere

Other relational database systems

Relational database systems that are neither primarily xBase nor SQL systems, note that some of the systems below may offer some sort of compatibility with either of those two standards and may therefore appear both here and on the xBase/SQL pages or even in all three places.

• Borland ObjectVision
• Btrieve
• DataEase
• DataFLEX
• Enable/OA
• Lotus Approach
• Paradox for OS/2 (Ansa/Borland)
• pcVerse - A version of "Universe" (A Pick system)
• Rbase
• Rel - "True relational" system
• Stretch DBMS