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Differentiate sub-class and super-class?
The specialization of a class is known as subclasses.eg: employee is a subclass of person and teller is a subclass of employee. Conversely, employee is a super class of teller, and person is a super class of employee.
What are the function of DBA?
Define a relation ? Relation - A relations is a named two-dimensional table of data. Mathematically, a relation can be described as a subset of the cartesian product of a lis
Which two files are used during operation of the DBMS? Data dictionary and transaction log are two files used during operation of the DBMS.
1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
how to write tables and drow E-R diagrams for hosiptal management system and how to normalize and cardinalities?
What is database utility? Database utility is the interface among the ABAP/4 Dictionary and the underlying the SAP system.
What is meant by heuristic optimisation?Discuss the major heuristics that are applied during query optimisation.
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
Construct a generalization-specialization hierarchy for a motor-vehicle sales company. The company sells motorcycles that comprise an engine number and cost; cars that have a chass
Why, generally does an object-oriented system use the relational DBMS? The reasons for using relational DBMS for OO systems could be any combination of following: a. Many or
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