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Describe Database state in details?
Database state: The actual data within the database at a particular moment in time is known as a database state.
How the time stamps are implemented Use the value of the system clock as the time stamp. That is a transaction's time stamp is equivalent to the value of the clock when the tra
Explain differance between Primary and secondary storage ? Primary and secondary storage Computer storage is classified within primary(main) memory and secondary(per
A domain is a set of permissible values that can be given to an attribute. So each attribute in a table has a definite domain. Values to these attributes cannot be assigned outside
explain equi-join using illustration
what do you mean by consistency in rdbms?
What are attributes? Give examples. An entity is shown by a set of attributes. Attributes are descriptive properties possessed by every member of an entity set. Example: pos
Define page. The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
what factors might influence a company to outsource its IT infrascture.
What is recursive closure? Why is it not possible to describe this operation in relational algebra? Recursive closure is applied to recursive relationship. An instance of rec
FDs in Entities : Student entity : Enrolment number → Student name, Address Course Entity :
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