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Explain Candidate key? Candidate Key - A candidate key is a minimal superkey, that can be used to uniquely identify a tuple in the relation.
What sorts of tables one can se in designing the hierarchy of a LDB? Tables, which are having Foreign Key relations.
1. Staff (staffID --> availabilityID) 2. Services (servicesID --> itemBasedID --> timedBasedID) 3. TimedBased (timedbasedID--> priceid) 4. Clients (clientId, serviceId-->
Mention various steps required to draw an E-R Diagram. Draw an E-R Diagram for Student Information System. Mention all suitable assumptions to justify your answer.
Preliminary entities and attributes of human resourse management database management system
In E-R Diagram how relationship type is represented ? In E-R Diagram relationship type is represented as a Diamond.
In which form of relational database developer refers to a record? In a tuple form of relational database developer refers to a record.
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
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What is E-R model? This data model is based on real world that having of basic objects called entities and of relationship between these objects. Entities are explained in a da
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