1.a) The DBA (DB Administrator) is ultimately responsible for every aspect of DBMS,Briefly identify & describe three responsibilities of a DBA.b) The DBA's responsibilities are constantly changing. Briefly identify & describetwo emerging characteristics or new technologies of DBs that may change theresponsibilities of the DBA.c) Discuss (with example) when the Selectivity of a Query may decide thesuitability of a compatible index in executing the Query.

Given: Describe DBA's three responsibilities.

Answered: a) The DBA (DB Administrator) is…

a) The DBA (DB Administrator) is ultimately responsible for every aspect of DBMS, Briefly identify & describe three responsibilities of a DBA. 1.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Concurrency Control

The simultaneous occurrence of two or more operations is called concurrence and the situation is called concurrency. In concurrency, the function of one operation can affect the function of the other and put data integrity at risk. Hence, management for the control of concurrency is required. The management or controlling system in the Database Management System (DBMS) that coordinates concurrent access is called the concurrency control system.

Question

1.
a) The DBA (DB Administrator) is ultimately responsible for every aspect of DBMS,
Briefly identify & describe three responsibilities of a DBA.
b) The DBA's responsibilities are constantly changing. Briefly identify & describe
two emerging characteristics or new technologies of DBs that may change the
responsibilities of the DBA.
c) Discuss (with example) when the Selectivity of a Query may decide the
suitability of a compatible index in executing the Query.

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