Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain the Role of a database administrator
a. Defining the Schema
The DBA describes the schema which consists of the structure of the data in the application.
The DBA defines what data needs to be present in the system ad how this data has to be denoted and organized.
b. Liaising with Users
The DBA wants to interact continuously with the users to understand the data in the system and its employ.
c. Defining Security & Integrity Checks
The DBA finds out about the access restrictions to be defined and demonstrates security checks accordingly. Data Integrity checks are as well defined by the DBA.
d. Defining Backup / Recovery Procedures
The DBA as well defines processes for backup and recovery. Defining backup procedures involves specifying what data is to backed up, the periodicity of taking backups and as well the medium and storage place for the backup data.
E. Monitoring Performance
The DBA has to incessantly check the performance of the queries and take measures to optimize all the queries in the application.
What is Identity? Identity (or AutoNumber) is a column that automatically produces numeric values. A start and increment value can be set, but most DBA leave these at 1. A GUID
Question: (a) Discuss the difference between a composite key and a composite attribute. How would each be indicated in an E-R diagram? Support your answer with appropriate exam
what is lossless & dependency preserving decomposition ?
Explain the Check Clause The CHECK clause is employed to at the end of a CREATE TABLE statement specify table constraints. This is known as table-based constraint because it ap
System Design: An Object Oriented Approach Any software systems always try to change and evolve as technology and business rules evolve. The development of information systems
Submission Requirements All answers must be computer generated (including text and diagrams). The hand-in version must include a header page (or with sufficient space)
SET concept is used in which type of modelling? SET concept is used in Network Model.
Question: A DBMS built for Online Transaction Processing (OLTP) is generally regarded as unsuitable for data warehousing. Each system is designed with a different set of requir
In Oracle what is system global area and how is it organized? The SGA is a collection of shared memory fields which along with the Oracle processes constitute an Oracle instan
The PROJECT operation The project operation is used to choose the records with specified attributes as discarding the others based on some related criteria. This is denotes as ∏
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd