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| compound key | |||
| composite key (A key whose definition consists of two or more fields in a file, columns in a table, or attributes in a relation) | |||
| concatenated key; multifield key | |||
| составной ключ: 6 phrases in 4 subjects |
| Databases | 2 |
| Information technology | 2 |
| Microsoft | 1 |
| Programming | 1 |