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What is the purpose of storage manager? The storage manager is responsible for the following a) Interaction with the file manager b) Translation of DML commands in to low
Control as Concurrent Tasks The expression control as simultaneous task means applying control for those events of object which can happen simultaneously. An object can be imp
What is a virtual table that draws its data from the result of an SQL SELECT statement? View is a virtual table that draws its data from the result of an SQL SELECT statement.
Explain the three data models namely relational, network and hierarchical and evaluate their relative advantages and disadvantages. Hierarchical Model: In hierarchical model, da
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
Define Query Processing Query processing is the process of selecting the best plan or strategy to be employed in responding to a database request. The plan is then executed to
Which database object does not physically exist? A view database object does not physically exist.
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational mo
The database will enable college administrators the ability to track students initial major. This will help college officials decide how best to prepare students for their goals an
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