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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 is specialization?
examples of fields in a database
Define the term Domain. For each n every attribute there is a set of permitted values known as the domain of that attribute.
What are the categories of SQL command? SQL commands are separated in to the following categories: 1. Data - Definitition Language 2. Data Manipulation language 3. Dat
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Problem 1. Create a PL/SQL program to insert data into student table and display the details of the student having Reg.No 1010 Writing a PL/SQL program to Insert data
What is object containment? References among objects can be used to model dissimilar real-world concepts.
Hierarchical model is also known by? A hierarchical model is also known as a Tree structure.
Nested Queries Let us see some more complex queries in this section. Sub-queries: Some of the basic concerns of sub-queries are: A sub-query is a SELECT statemen
describe objectivde of file organisation
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