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what is er digram given that example of hospital,bank and library er digram.
PART MARKING: We will only mark TWO of the four questions below but you must submit answers to all four. We will choose the questions we mark randomly and we will supply you with
What is Relational calculus? Relational calculus is a Non- Procedural language.
What is the way a particular application views the data from the database that the application uses? Sub schema is the way a particular application views the data from the data
a set of possible data value of an attribute is called??
sql is relationally complete-justify
Explain the benefit of OOM. Main benefits of object oriented modeling are development of system become fast, quality of the system get improve. It gives freedom of use of alrea
List and also explain the dissimilar stages of DDLC ?
What are the drawbacks of shadow-paging technique? The drawbacks of shadow paging is:- a) Commit Overhead b) Data fragmentation c) Garbage collection
Give the reasons for allowing concurrency? The reasons for allowing concurrency is if the transactions run serially, a short transaction might have to wait for a preceding long
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