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Explain the Strategy of Database Planning ?
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
State The position of object at any moment is called state. An object can have many states depend upon time. After receiving some input instructions, the object can change its
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
what factors might influence a company to outsource its IT infrascture.
Objectives After Reading this part, you should be able to: Explain the term CONCURRENCY; Describe the term transaction and concurrent transactions; Talk about co
What is RDBMS terminology for a row? A tuple is a RDBMS terminology for a row
What is entity in DBMS? Entity: A DBMS entity is either a thing in the modelled world or a drawing element in an ERD.
Consider the following frequency counts of some itemsets in a transaction database r : freq({A}, r) = 0.405 freq({B}, r) = 0.510 freq({C}, r) = 0.303 freq({A
Define two-phase locking protocol. Ans: Two-phase locking is significance in the context of ensuring that schedules are serializable. The two-phase locking protocol defines a p
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