| relational database | 5.20 | The data is stored in a relational database. | ||
| relational model | 1.05 | The relational model is not computer-oriented. | ||
| relational algebra | 0.72 | In using the relational algebra. | ||
| relational calculus | 0.33 | We now look at the relational algebra and the relational calculus in more detail. |