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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
List the Armstrong's axioms for functional dependencies. What do you understand by soundness and completeness of these axioms? Ans: The Armstrong's axioms are: F1:
What is object identity? An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
Why Like predicate used for? LIKE predicate: The LIKE predicate searches for strings in which have a certain pattern.
Components of database manager The above functions are reached by the database manager. The major elements of a database manager are: Authorisation control: This mod
Question: (a) What do you meant by content management and briefly describe four major components of a Content Management System? (b) Explain key benefits of a Content Manage
What is recovery management component? Ensuring durability is the responsibility of a software component of the base system known as the recovery management component.
average response time?
Advantages and disadvantages of icloud based storage
Examine about the Behavioural Diagrams The main objective of behavioural diagrams is to visualize, specify, construct and document dynamic aspects of a system. The interactio
What is association? Give an example of association Association is used for establishing relationships among classes. Association describe links among/between classes. For exa
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