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A relation instance indicates as r is a collection of tuples for a given relational schema at a exact point of time.
A relation state r of the relation schema R (A1,A2,..........AN), also denoted by r(R) is a set of n-tuples
r = {t1,t2,............tm}
Where each n-tuple is an ordered list of n values
t = 1,v2,........, vn>
where every vi belongs to domain (Ai) or includes null values.
The relation schema is also known as 'intension' and relation state is also known as 'Extension'.
What is an Operand? The data on which the operation is to be performed is known as an Operand
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Illustrate the State model for the ATM class let us take state model for the ATM class given below in Figure showing state model of the ATM class and the pseudo code derived fr
Inconsistent Analysis : The problem as given with transactions T1 and T2 where two transactions interleave to make incorrect result during an analysis by Audit is the instance of s
I have a small project that contains 3 deliverable s. I have done the first one and I would like you to help me with second one
Define shadow paging. An alternative to log-based crash recovery method is shadow paging. This technique requires fewer disk accesses than do the log-based methods.
what is un ordered and ordered file managment?
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