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Define an abstraction by which relationships are treated as higher level entities
Ans: Aggregation.
It is an abstraction by which relationships are treated as higher level entities Aggregation. (In ER diagram, aggregation is utilized to denote a relationship as an entity set.)
what do you mean by consistency in rdbms?
Implementation of association as an object Implement as a separate association object, independent of either class, as in Figure. An association object is a group of pairs
er diagram of sport
Differentiate between B-tree and B + tree Ans: A B-tree (or Balanced Tree) is a search tree along with additional constraints that makes sure that the tree is all the time
what is attribute is attribute inheritance in dbms?
The need for three level architecture The aim of the three level architecture is to divide each user's view of the database from the way the database is physically shown.
a method named WonGame that checks each letter in the word is matched by its label
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
DROP TABLE Command: When an existing object is not needed for further use, it is always better to eliminate it from the database. To remove the existing object from the databas
What are the Constituents of File? Also elaborates all the possible file operations? A file is organised logically as sequence of record. These records are mapped onto disk blo
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