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What is meant by software and hardware RAID systems?
RAID can be executed with no change at the hardware level, using only software modification. Such RAID implementations are known as software RAID systems and the systems with special hardware support are known as hardware RAID systems.
What disadvantage of ODBC does OLE DB overcome? By breaking the features and the methods of a DBMS into COM objects, OLE DB characteristic overcomes a main disadvantage of ODBC
What is storage manager? A storage manager is a program module that gives the interface between the Low level data kept in a database and the application programs
Explain how the associations are implemented as classes. A general approach in this case is to transform an association class into a simple class linked to two original classes
Domain Constraint It shows that each attribute in a relation has to contain an atomic value only from the corresponding domains. The data types associated with commercial RDBMS
object oriented database
Chapter 10a review questions
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
What are the various properties of Relational tables? Relational tables have 6 properties: 1. Each row is unique. 2. Column values are of the same kind. 3. Values are
Question: (a) Define the term e-Government and briefly explain, using appropriate examples, the aspects it covers. (b) Give four reasons as to why a country should adopt e
Which method is used to key transformation ? A hash method is used to key transformation.
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