| Adaplex | ⊕ 1983 | ↓ ↑ ⊕ Business Data Processing | ⊕ United States | An extension of Ada for functional databases | |
| APS | ⊕ 1983 | ↓ ↑ ⊕ Business Data Processing | ⊕ Auditing | ⊕ Germany | |
| DATATRIEVE | ⊕ 1983 | ↓ ↑ ⊕ Business Data Processing | ⊕ Other DPLs | ⊕ United States | DEC 4gl |
| ERROL | ⊕ 1983 | ↓ ↑ ⊕ Business Data Processing | ⊕ United States | Entity-relationship, role oriented, query language |