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What is primary Key Explain? Primary Key - Primary key is one of the candidate keys. It should be selected such in which its attribute values are never, or very rarely, chang
Question: AirwaysCentre, an international airline booking company currently uses a relational database system for their operations, which includes the following relations: P
er diagram on cosmetics.
The cross-section of twisted pair The cross-section of each and every strand of the twisted pair is π/4 square mm. A 10-km length of this type of material, with two strands per
When It is better to use files than a DBMS? It is better to use files than a DBMS when Multiple users wish to access the data.
prototype of a distributed information system for a national car part retail outlet chain.
Determine Which is not a consequence of concurrent operations? Ans: Update anomaly.
What are the types of storage devices? Primary storage Secondary storage Tertiary storage Volatile storage Nonvolatile storage
Define the concept of Object Diagram An object diagram shows a set of the objects and their relationships with each other at a point of time. In a static view, object diagram
What is the initial step for object-oriented designing The initial step for object-oriented designing is object modeling. Before we go into deep about object modeling first of
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