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What is DAG? The class-subclass relationship is shown by a directed acyclic graph.eg: employees can be temporary or permanent. We might be create subclasses temporary \and perm
what does glory be mean
Write short notes on domain relational calculus The domain relational calculus uses domain variables that take on values from an attribute domain rather than values for whole
What is an Operand? The data on which the operation is to be performed is known as an Operand
Attributes and its types explain?
What is association? Give an example of association Association is used for establishing relationships among classes. Association describe links among/between classes. For exa
Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:
intent locking
1. Will you advise that your organization uses open source software and why? 2. Why is it important for business managers to have a basic understanding of the software development
The First Normal Form (1NF) Let us first describe 1NF: Definition: A relation (table) is in 1NF if 1. There are no duplicate tuples or rows in the relation. 2.
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