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1.De?ne the following terms: relation schema, relational database schema, domain, attribute, attribute domain, relation instance, relation cardinality, and relation degree.
2.Does the relational model, as seen by an SQL query writer, provide physical and logical data independence? Explain.
What is the maximum rate at which data can be read from disk, assuming that we can only read data from one surface at a time? What is the average rotational latency?
What advantage is there in storing metadata in tables? Is Microsoft Access a DBMS? Why or why not? List the several consequences of a poorly designed database.
Suppose you are asked to evaluate a DBMS in terms of lock granularity and the different locking levels. Create a simple database environment in which these features would be important.
write a two-page executive summary for your boss explaining how a relational data solution can be applied to a current
Create a use case diagram and use case descriptions for each use case scenario in your use case diagram (minimum of 3).
Explain the following terms brie?y: attribute, domain, entity, relation-ship, entity set, relationship set, one-to-many relationship, many-to-many relationship, participation constraint, overlap constraint, covering constraint, weak entity set, aggre..
Which is not a factor to consider in software evaluation and explain relational database and Metadata - Build an entity relationship model
Water meters must be replaced when they have been in use for 5 years. We can assume that a meter will never be damaged or become unserviceable and will not be re-assigned to another service address.
part a - use cases perform a requirements analysis for the case study. express the results using the following
Describe how to create a query in Access Query Wizard equilvant to the query: SELECT first, last, department, hours FROM payroll WHERE hours>.
Suitable data that suits your requirement and design and explain the 3- schema architecture for the requirement.
your database has been a hit. you have been called back to the customers headquarters and they want a detailed report
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