Λύση - Ερώτηση πολλαπλών επιλογών
Επιλέξτε 1 από τις 4 απαντήσεις
| They ensure that records contained in related tables will not be deleted. | They ensure that related fields contain numbers. |
| They ensure that related fields are not primary keys. | They ensure that records can be copied from one table to another one. |
| Κωδικός ερώτησης: 12069 | 11/13 | |
| ΠΡΟΗΓΟΥΜΕΝΗ ΕΡΩΤΗΣΗ | ΕΠΟΜΕΝΗ ΕΡΩΤΗΣΗ | |
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What are the referential integrity rules between related fields, assure us? |
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| Άλλες εκδόσεις | ||
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