| 473L Query | ⊕ 1969 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Query language for Air Force 473L system |
| ACCESS | ⊕ 1972 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ Norway | Norsk Data query Language |
| Access | ⊕ 1970 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Pick query language |
| ADAM | ⊕ 1964 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Data Management System for IBM 7030 |
| AESOP | ⊕ 1967 | ↓ ↑ ⊕ Specialised Languages | Ad hoc query languages | ⊕ United States | Interactive query generating language |
| AS-IST | ⊕ 1968 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | |
| BASEBALL | ⊕ 1961 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Constrained natural language for querying attribute value pairs |
| BBN data management system | ⊕ 1965 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | |
| CARPS | ⊕ 1968 | ↓ ↑ ⊕ Experimental and other | Ad hoc query languages | ⊕ United States | Word-problems language |
| CCL | ⊕ 1966 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Querying language |
| DAISY | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | query language for decision support | |
| dataBASIC | ⊕ 1970 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | |
| DEACON | ⊕ 1962 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | English-like query system |
| EASY ENGLISH | ⊕ 1968 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Information retrieval language |
| ETF | ⊕ 1961 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Early query language |
| EXTRACT | ⊕ 1965 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Querying language |
| GIM-I | ⊕ 1966 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Information retrieval language |
| GIRLS | ⊕ 1961 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Generalized Information Retrieval and Listing System |
| HAYSTAQ | ⊕ 1959 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Restricted input querying language |
| INFOL | ⊕ 1964 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Querying language |
| INFRAL | ⊕ 1960 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Information retrieval language |
| Legal Retrieval | ⊕ 1961 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Information retrieval system for legal documents |
| LUCID | ⊕ 1964 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Data query language |
| MANAGE | ⊕ 1966 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | |
| MARK I | ⊕ 1962 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | GCSC Informatics data querying language |
| MARK II | ⊕ 1964 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | |
| Minuteman | ⊕ 1961 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | GEC information retrieval system |
| MQL | ⊕ 1999 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ Denmark | Query language for EMDROS text database |
| MQL | ⊕ 1994 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Medical query language |
| MQL | ⊕ 1986 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Modular Query Language |
| Namer | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | Ad hoc query languages | ⊕ United States | Graphically oriented data retrieval language |
| PLM | ⊕ 1957 | ↓ ↑ ⊕ Specialised Languages | Ad hoc query languages | ⊕ United States | Graphically oriented data retrieval language |
| Protosynthex | ⊕ 1960 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Querying system for English test |
| Protosynthex II | ⊕ 1970 | ↓ ↑ ⊕ On-Line | Ad hoc query languages | ⊕ United States | Evolution of Protosynthex |
| Protosynthex III | ⊕ 1970 | ↓ ↑ ⊕ On-Line | Ad hoc query languages | ⊕ United States | Evolution of Protosynthex |
| QL | ⊕ 1994 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ Netherlands | Query language for the Doedens multi language text query system |
| QL/8N | ⊕ 1984 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Query language |
| QL77 | ⊕ 1977 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | |
| QUERY | ⊕ 1962 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Near natural language querying system |
| QWICK QWERY | ⊕ 1967 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | |
| RECOL | ⊕ 1963 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | REtrieval COmmand Language |
| SAD SAM | ⊕ 1962 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Basic English querying system |
| SIL | ⊕ 1989 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Data interchange language |
| SPECOL | ⊕ 1968 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United Kingdom | Querying language |
| The General Inquirer | ⊕ 1962 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Special input language for Harvard information retrieval system |
| The Oracle | ⊕ 1960 | ↓ ↑ ⊕ On-Line | Ad hoc query languages | ⊕ United States | Early QA system |
| UL/1 | ⊕ 1965 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Early non-procedural query language |
| Ultimate | ⊕ 1975 | ↓ ↑ ⊕ Business Data Processing | Ad hoc query languages | ⊕ United States | Language for interactive Pick querying |
| USL | ⊕ 1978 | ↓ ↑ ⊕ Specialised Languages | Ad hoc query languages | ⊕ Germany | Near natural language querying system |