 |
| |||
| ключевой столбец (A column whose contents uniquely identify every row in a table) | |||
| столбец ключа (ssn) | |||
| key column: 13 phrases in 3 subjects |
| Databases | 11 |
| Technology | 1 |
| Transport | 1 |
|
| |||
| ключевой столбец (A column whose contents uniquely identify every row in a table) | |||
| столбец ключа (ssn) | |||
| key column: 13 phrases in 3 subjects |
| Databases | 11 |
| Technology | 1 |
| Transport | 1 |