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Adding Redundant Associations for Efficient Access
Redundant associations do not add any type of information, therefore during design we should actually examine structure of object model for implementation and try to establish whether we could optimize critical parts of completed system. New associations can be added? Or old associations can be removed? The derived association does not require adding any information to the network, they help increasing model information in efficient mode.
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
Distributed Database Management System
What is association? Give an example of association Association is used for establishing relationships among classes. Association describe links among/between classes. For exa
Define average seek time. The average seek time is the average of the seek times, calculated over a sequence of random requests.
Explain ODBC? ODBC - Open DataBase Connectivity (ODBC) enable the integration of SQL along with a general-reasons programming language.
Explain the Query Processing Data Query Processing permits a user to report or analyze structured and unstructured data pulled from multiple data sources.
under what condition log based recovery is feasible?
Decompose the table with the following description and functional dependencies into a set of equivalent tables normalized to 3NF or BCNF. A long-standing international treaty am
(a) Why did SAP introduce the extended star schema?
Using the questions found at the end of Chapter 9 in your textbook, complete this homework activity. Students will submit a Word document answering questions 2, 3, and 4.
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