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Smart Alex Catering Sevice (SACS) is a company offering top class catering staff for prestigious events. The company employs approximately 200 hourly paid contact staff - chefs,
Describe disk manager and their work? Disk Manager: Responsible for fetching data regulated through file Manager from disk storage within Main memory and deciding what data to
Describe analysis of access paths To describe analysis of access paths, consider an example of the design of a company's employee skills database. A part of the object model fr
What is assertion? Mention the forms available. An assertion is a predicate expressing a condition that we wish the database always to satisfy. Domain integrity constraints.
Whst is logical schema ? Logical schema is the entire database.
What is meant by heuristic optimisation?Discuss the major heuristics that are applied during query optimisation.
explain the mapping constraints
Write short notes on transaction state? A transaction may not always complete its implementation successfully such a transaction is termed aborted A transaction must be in o
The data of a view is not physically stored, but derived from one or more tables. True the data of a view is not physically stored
Ask question #Minim 100 words accepted#what is recovery management component in database management system and how it is useful
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