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What is disadvantage of multiple inheritances? There is potential ambiguity if the similar variable or method can be inherited from more than one superclass.eg: student class m
Describe Parameteric end users? Parametric end users might be given update access, but are commonly not permitted to change the structure of data.
discuss the purpose of the concurrency control?
Data Control The data control mostly refers to commands that permit system and data privileges to be passed to several users. These commands are usually available to database admi
Server Control It is usual to control access to the data via the front end application, for example by displaying data as ‘read only'. This part of the assignment illustrates ho
Explain the Deferred Update The deferred update methods do not physically update the database on disk till after a transaction reaches its commit point; after that the updates
I need help with data warehousing and business intelligence course project about designing a data warehouse for a jewelry company that does not have one
Explain current page table and shadow page table. The key idea behind the shadow paging method is to maintain two page tables during the life of the transaction: the current pa
(a) Provide the description of the following ODMG schema in the Object Definition Language (ODL). (b) Based on the above object database, write the following queries i
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
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