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What is a primary index?
A primary index is an index whose search key also explains the sequential order of the file.
Differance between internal and external schema? Internal and external schema: Internal Schema • Describes the physical storage structure • Uses a physical data model External
What is object identity? An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
The database will enable college administrators the ability to track students initial major. This will help college officials decide how best to prepare students for their goals an
Is it mandatory to declare all the tables in Report by the key word tables for all the tables that exist in the structure of LDB, and are being explained in the Database part of LD
as a customer service employee explain five measures you would recommend to make even a displeased students patronize the school canteen
The figure below depicts the conceptual diagram of a banking system. (a) Describe one example relevant to the system in figure, for each of the 4 types of enterprise appl
Backward Recovery (UNDO): In this system the uncommitted changes made by a transaction to a database are undone. Instead the system is reset to the last consistent state of databa
As with other software, databases can potentially be used for unethical purposes. As a database developer, and a consumer, you should recognize database misuse, and how it may affe
Explain three main attributes of data.
a brief definition
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