Question

These the possible types of relationships in database:
1. None to None
2. One to One
3. None to One
4. None to Many
5. Many to one
6. Many to Many
7. One to None
a. 1,7 only
b. 1,5 and 6 only
c. 1,2,5 and 6 only
d. 1,2 and 7​

Answer 1

Answer:

There are three types of relationships between the data you are likely to encounter at this stage in the design: one-to-one, one-to-many, and many-to-many. To be able to identify these relationships, you need to examine the data and have an understanding of what business rules apply to the data and tables.