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Group By clauses • It is used to group database tuples on the basis of definite common attribute value like as employees of a department. WHERE clause still can be used
About Attribute inheritance
What is Relational calculus? Relational calculus is a Non- Procedural language.
Availability: A site having the copy of a replicated relation fails, even then the relation may be found in another site. Therefore, the system may carry on to process at least th
i am required to come up with entities relationships, optionality and cardinality from a scenario. there is a night club and bookings for a musician band
Durability : This property necessitates that once a transaction has committed, the changes made by it be never lost because of subsequent failure. Thus, a transaction is also a bas
Consider a bank that has a collection of sites, each running a database system. Suppose the only way the databases interact is by electronic transfer of money between one another,
State as Location within a Program In this traditional approach, location of control inside a program totally defines the program state. Any finite state machine may be implem
What is Cross Product? Simply Cross product is Binary Operator
Normal 0 false false false EN-US X-NONE X-NONE
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