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Difference between connectivity and cardinality

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Reference no: EM133234761

Basic database terminology and key concepts about the relational database model.

1. Please define and give an example of each of the following:

a. composite attribute

b. derived attribute

c. single-valued attribute

d. multivalued attribute

e. simple attribute

f. strong entity

g. weak entity

h. strong relationship

i. weak relationship

2. What two conditions must be met before an entity can be classified as a weak entity?

3. What is a recursive relationship? Give an example.

4. What is the difference between connectivity and cardinality?

5. Choose two of the Conflicting Goals-(Design standards, Processing speed, Information requirement) and give an example to explain how they can conflict with each other.

Reference no: EM133234761

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