HOPL

DBMS Data representation

ASAP	1970	Business Data Processing	Hierarchical DB	United States	Event-aware DB language
BOMP	1963		Hierarchical DB	United States	Bill of materials processor
Bus-Pak II	1965	Business Data Processing	Hierarchical DB	United States
CDS/ISIS	1975		Hierarchical DB	France	UNESCO ISIS
Data/BASIC	1970	Business Data Processing	Hierarchical DB	United States	Scripting language for PickOS
DBOMP	1967		Hierarchical DB		Maintenance database
DM-1	1967	Business Data Processing	Hierarchical DB	United States	Data Manager 1
DML	1972	Business Data Processing	Hierarchical DB	United States	Data manipulation language for IMS
DPL	1968	Business Data Processing	Hierarchical DB	United States	Data Processing Language
DYL250	1968		Hierarchical DB	United States
EASYTRIEVE	1969	Business Data Processing	Hierarchical DB	United States
FOCUS	1979	Business Data Processing	Hierarchical DB	United States	Hierarchical database language
IDS	1964	Business Data Processing	Hierarchical DB	United States	Integrated Data Store
ISIS	1974	Business Data Processing	Hierarchical DB	Switzerland
MARK IV	1968	Business Data Processing	Hierarchical DB	United States
OLQ2	0	Business Data Processing	Hierarchical DB	United States	IDMS query language
QLP	0	Business Data Processing	Hierarchical DB	United States	Query language for Univac
QUERY/UPDATE	1978	Business Data Processing	Hierarchical DB	United States
SC-1	1969		Hierarchical DB	United States