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Question:
A DBMS built for Online Transaction Processing (OLTP) is generally regarded as unsuitable for data warehousing. Each system is designed with a different set of requirements.
(i) Give example of how OLTP systems differ from data warehousing systems.
(ii) Illustrtae any problems that are associated with developing and managing a data warehouse.
(iii) Explain what is meant by Metadata and what are the purposes of a Metadata in data warehouse architecture.
(iv) Show how data marts differ from data warehouses and identify any two reasons for implementing a data mart.
What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.
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Deletion Anomalies: Loss of important Information: In some cases, useful information may be lost when a tuple is deleted. For instance, if we delete the tuple corresponding to stu
create an e-r diagram usuing graphical dipicted software that could theoritically be used in resturant application
Strict 2PL :Though, this basic 2PL suffers from the trouble that it can result into loss of isolation / atomic property of transaction as theoretically speaking once a lock is rele
Define the term Domain. For each n every attribute there is a set of permitted values known as the domain of that attribute.
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
Different stages of DDLC ?
I need some help with my normalization database homework.
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