Similar to DBASE

Indexed Database API
IndexedDB
IBM Informix
Informix
Informix Dynamic Server
IBM Informix Dynamic Server
Informix Universal Server

Ingres
Ingres (database)
InterBase
InterBase
Interstage Shunsaku Data Manager

Kairos Main Memory RDBMS

Kdb+
Kdb+
LibreOffice Base
LibreOffice Base
MaxDB
MaxDB
MDB Tools
MDB Tools
MRDB

MSQL
MSQL
NeoCore

NoSQL
NoSQL
Oracle Rdb
Oracle Rdb
QDBM

Quorum
Quorum (distributed computing)
SAP BW/4HANA

SAP IQ
SAP IQ
SolidDB
SolidDB▼-1 trends
SQL Anywhere
SQL Anywhere
SQL/DS
IBM SQL/DS
SQLite
SQLite
Sybase Adaptive Server Enterprise

Sybase SQL Server

Symfoware Server