QUESTION 33
In the ____________ database model, the entities are organised in a graph, in which some
entities can be accessed through several paths.
1. network
2. distributed
3. relational
4. hierarchical
QUESTION 34
Which one of the following operations is not a unary operation on a relational database?
1. Update
2. Select
3. Extract
4. Project
QUESTION 33
QUESTION 34
3. Extract
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