 |
| |||
| relations multiples (n:p) | |||
| relation plusieurs à plusieurs (An association between two tables in which one record in either table can relate to many records in the other table) | |||
|
many-to-many relationship : 2 短语, 1 学科 |
| 微软 | 2 |
|
| |||
| relations multiples (n:p) | |||
| relation plusieurs à plusieurs (An association between two tables in which one record in either table can relate to many records in the other table) | |||
|
many-to-many relationship : 2 短语, 1 学科 |
| 微软 | 2 |