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What is a recursive relationship? Give an example not used in the text.
A recursive relationship is a relationship among an entity and itself. For example, given the entity PERSON, a recursive relationship could be used to show a PERSON and his or her SIBLINGs (brothers and sisters).
Question (a) Concurrent access to data from a database is a normal part of application program usage. Describe three approaches to concurrency control (b) Distinguish among
as a customer service employee explain five measures you would recommend to make even a displeased students patronize the school canteen
Implementation of association as an object Implement as a separate association object, independent of either class, as in Figure. An association object is a group of pairs
Define check point and its impact on data base recovery. Ans: There could be hundreds of transactions handled per minute, in a large on-line database system.
what characterizes the levels in RAID technology
The advantages of a database management system (DBMS) include :- Data integrity and elimination of duplication.
3 assignments combined in 1
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Submission Requirements All answers must be computer generated (including text and diagrams). The hand-in version must include a header page (or with sufficient space)
How persistent programming languages differ from traditional programming languages? Database languages vary from traditional programming languages in that they directly manipul
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