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Define the concept of generalization
A generalization is relationship between specific kind of thing and general thing. It is also known as "is-a-kind-of" relationship. Inheritance can be modelled using generalization. In UML, it is represented by a solid directed line with a large open arrow pointing to parents.
what problems are raised by the database? why is it so controversial? why is data quality an issue?
What is Asterisk in SQL? Asterisk (*): In SQL, the columns for all the tables and views in the FROM clause will be displayed.
Define data model? A data model is a collection of conceptual tools for explaining data, data relationships, data semantics and consistency constraints.
What is a shadow copy scheme? It is simple, but efficient, scheme known as the shadow copy schemes. It is based on making copies of the database called shadow copies that singl
What is a primary index? A primary index is an index whose search key also explains the sequential order of the file.
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
why three level architecture had been developed/
What is schema
Create an entity relationship diagram, Database Management System
various techniques of hashing?
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