SQL/DS

SQL/DS (Structured Query Language/Data System) was IBM's first commercial relational DBMS product that supported SQL. Its architecture was based on portions of System R.

Data Model

Relational

Query Interface

SQL

Developer

IBM

Country of Origin

US

Start Year

1981

Former Name

DB2 for VM and VSE

Project Type

Commercial

Derived From

System R

Licenses

Proprietary

Wikipedia

https://en.wikipedia.org/wiki/IBM_SQL/DS