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State the Component Diagram
A component diagram represents a set of component and relationships among them. In a dynamic model, component diagram is used to model physical components for example executable releases, databases, libraries, adaptable systems or files. It has components, interfaces, subsystems, packages, generalization, association, dependency, and relationship. The notation for components and relationship among components is shown as:
Limitations of File Based System The file-based system has some limitations. The limitations are listed as follows: Isolation and separation of data: When the data is
why shadow copy technique is used?
Authorisation Authorisation is the culmination of the administrative policies of the organisation. As the name shows, authorisation is a set of rules that can be used to verif
Database systems have many opposite efforts ?
Write a query to define tables students and teachers as sub tables of people? Create table students of student under people Create table teachers of teacher under people
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Describe the various types of Online Analytical Processing (OLAP) tools and briefly discuss how the support common analytical operations.
What are the states of transaction? The states of transaction are:- a) Active b) Partially committed c) Failed d) Aborted e )Committed f) Terminated
Q. Why would you choose a database system instead of simply storing data in operating system file? Define at a base concept in details. Sol. Advantages of Database over Fil
What are the DBMS languages? Explain. Ans: a) Data Definition Languages (DDL): It is employed to specify database schema for example CREATE DROP statements etc. b) Dat
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