| English | eng-000 |
| relational algebra | |
| 普通话 | cmn-000 | 关系代数 |
| English | eng-000 | relation algebra |
| français | fra-000 | algèbre relationnelle |
| hrvatski | hrv-000 | odnosna algebra |
| hrvatski | hrv-000 | relacijska algebra |
| русский | rus-000 | алгебра отношений |
| español | spa-000 | álgebra relacional |