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Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
What benefits can a company gain by managing its own information infrastructure and servicea
Explain the term - Adjustment of inheritance The inheritance can be enlarged as object design progresses by changing class structure. The designer should do: i) Adjust or r
write-set(T): Each data items that are written by a transaction T
Dirty Reads: T10 reads a value which is updated by T9. This update has not been committed and T9 aborts. T9 T10 Value of x old value = 200
Explain the Log Based Recovery Method? The system log that is generally written on stable storage consists of the redundant data required to recover from volatile storage failu
To do the division operation R1 ÷ R2, R2 should be a correct subset of R1. In the following example R1 have attributes A and B and R2 have only attribute B so R2 is a correct subse
What does authentication refer? Authentication refers to the task of verifying the uniqueness of a person.
Define tuple variable Tuple variable is a type of variable whose domain is the set of all tuples.
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