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Describe five main functions of a database administrator.
Ans: A database administrator (DBA) is a person who is accountable for the environmental aspects of a database. Generally, these include:
a) Recoverability - Creating and testing Backups
b) Integrity - Verifying or helping to verify data integrity
c) Security - Defining and/or implementing access controls to the data
d) Availability - Ensuring maximum uptime
e) Performance - Ensuring maximum performance
f) Development and testing support - Helping programmers and engineers to efficiently utilize the database.
Northwind Pty Ltd sells a variety of food products throughout the world. They want to use the reporting features of SAP''s Business Information Warehouse to better understand thei
notes about update opreation
Explain Deadlock detection and recovery Deadlock Detection - A deadlock is said to take place when there is a circular chain of transaction, every waiting for the release of a
Deadlock Prevention One of the easiest approaches for avoiding a deadlock would be to obtain all the locks at the begin of the transaction. Though, this approach restricts conc
In this assignment, you will create a program that works with multiple tables. In this assignment, you will work with the factory and sales tables. 1. Create a new project nam
coventions for displaying an ER schema as ER diagram
What are the different approaches for database design? There are two basic approaches for database design which are as follows: Attribute driven: It compiles a list of att
Explain outer join? Outer Join - If there are any values in one table which do not have corresponding value(s) in the other, in an equi-join which will not be chosen. Such ro
Ask question #MinimRead Dennis et al. Chapter 6: Minicase 2. Work through it and answer the questions. See the attached example. SequenceDiagram.png Based on the structural mod
Name the various privileges in SQL? A) Delete B) Select C) Insert D) Update
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