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Consider the following ER diagram. Which of the following situations are possible? (The numbers represent the number of instances in the entity sets and the
Consider the following ER diagram. Which of the following situations are possible? (The numbers represent the number of instances in the entity sets and the relationship set.)
| Case | person | member | club | Is it possible? |
| 1 | 5 | 0 | 8 | Yes or no |
| 2 | 5 | 7 | 8 | Yes or no |
| 3 | 5 | 0 | 5 | Yes or no |
| 4 | 5 | 10 | 5 | Yes or no |
| 5 | 11 | 3 | 4 | Yes or no |
| 6 | 11 | 9 | 4 | Yes or no |
phone name CID Caddress
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Database In Depth Relational Theory For Practitioners
Authors: C.J. Date
1st Edition
0596100124, 978-0596100124
