What are the artifacts generated during CDS View creation? Also explain the concept of cardinality and path expressions.

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CDS View activation generates 2 objects:
CDS View Entity(consumed everywhere) & SQL view at DDIC level.
Cardinality is used to define the relationship among tables. It can be such as ZERO TO ONE, ONE to ONE,ONE To MANY, MANY to ZERO represented as [0..1],[1..1], [1..*], [*..0]
Path expression is like a where condition which is used inside the CDS select to filter the data.

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