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Define DBA database administrator?
DBA: A database administrator (DBA) is a person who is responsible for the environmental aspects of a database. In common, these involves:
Recoverability - Creating and testing Backups Integrity - Verifying or helping to verify data integrity Security - Defining and/or implementing access controls to the data Availability - Ensuring maximum uptime Performance - Ensuring maximum performance Development and testing support - Helping programmers and engineers to economically utilize the database
Differentiate between various levels of data abstraction? Data Abstraction - Abstraction is the procedure to hide the irrelevant things from the users and represent the rele
Explain the Management of Data Store Every system irrespective of its nature of application requires storing permanent data for consequent use in problem solving. Some objects
explain various steps uses in evaluation and maintenance of MIS.
Consider the subsequent relation Professor (Pfcode, dept, head, time) It is assumed that (i) A professor can work in much more than one
Explain the concept of Modeling With Objects A model is a conceptual representation of a specification, design or system from a particular point of view. A modelling language
Problem: a) Briefly describe what you understand by Client-Server environment b) The File Server is a simple form of Client-Server. Describe the principles of the File Serve
What do you mean through integrity constraints? Integrity Constraints -An integrity constraint is a condition specified on a database schema and restricts the data in which
Define lock? Lock is the most common used to execute the requirement is to permit a transaction to access a data item only if it is currently holding a lock on that item.
write a database program for concurrency transaction in a bank
Question 1 What do you mean by database management system? Question 2 Write a note on Object-Oriented Model Question 3 Explain Sequential File Organization Question
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