What are the responsibilities of a dba

Assignment Help Database Management System
Reference no: EM13507550

1.Explain the di?erence between logical and physical data independence.

2.What are the responsibilities of a DBA? If we assume that the DBA is never interested in running his or her own queries, does the DBA still need to understand query optimization? Why?

Reference no: EM13507550

Questions Cloud

Explain how many moles must be added on volume change : Starting with 1 liter of 2.0 M CH3COOH (acetic acid) we wish to make a buffer solution of pH=4.00. Consider the following to make the buffer: One way would be to add sodium acetate. How many moles must be added (assume no volume change)
Prepare a monthly manufacturing overhead flexible budget : Prepare a monthly manufacturing overhead flexible budget for each increment of 3,000 direct labor hours over the relevant range for the year ending December 31, 2014 - Prepare a monthly manufacturing overhead flexible budget for 2014 for the expec..
Find the force of friction exerted by the belt on the sand : Sand from a stationary hopper falls onto a moving conveyor belt at the rate of dm/dt = 5 kg/s as shown. The conveyor belt is supported by frictionless rollers, Find the force of friction exerted by the belt on the sand
Market research and adjust the marketing mix : 1. Why is it important to do market research and adjust the marketing mix when entering into a foreign market? Explain the theory and then give practical examples of how some companies have already adjusted their marketing mix in foreign markets. Als..
What are the responsibilities of a dba : What are the responsibilities of a DBA? If we assume that the DBA is never interested in running his or her own queries, does the DBA still need to understand query optimization? Why?
Explain the specific heat of ethylene glycol : The specific heat of ethylene glycol is 2.42 J/g-k. How many J of heat are needed to raise the temperature of 62.0 g of ethylene glycol from 13.1 Celsius to 40.5 Celsius
What is the horizontal component of a drops velocity : When a train's velocity is 12.0 m/s eastward, raindrops that are falling vertically with respect to the earth make traces that are inclined 30.0 degree to the vertical on the windows of the train. What is the horizontal component of a drop's veloci..
Explain theoretical hydraulic retention time of the reactor : If the pollutant to be removed has a concentration of 100 mg/L and decays by 1st-order kinetics with a rate coefficient of 2.25 d-1, what percent removal is achieved if one uses the theoretical hydraulic retention time of the reactor. What percent..
A chemical manufucturer is setting up capacity in europe : A chemical manufucturer is setting up capacity in Europe and North America for the next three years, Annual demand in each market 2 million Kilograms

Reviews

Write a Review

Database Management System Questions & Answers

  Write a two to three 2-3 page paper in which yourecommend

write a two to three 2-3 page paper in which yourecommend at least three 3 specific tasks that could be performed to

  Create the primary and foreign key using a uml class diagram

Create the primary key and foreign keys using a UML Class diagram for each table and compare and contrast the key aspects that each system offers

  1 design an relational model rm model of a database db that

1. design an relational model rm model of a database db that will be useful for each of the chosen enterprises. hint

  How an organization would allow programmatic access

A few years have passed, and the restaurant has grown to become a national restaurant chain. Now, they are concerned that remote and branch offices and restaurants in all fifty states will not have ready access to the data.

  How many of the artist works have been sold

List the names of the deceased artists and the number of years of age they were when they died (for example, an artist born in 1950 and deceased in 2001 has an age of 51).

  Write name of employee on every project located in houston

Write the name(s) of employee(s) who works(work) on every project located in Houston. Write the name(s) of employee(s) who only works(work) on every project located in 'Houston.'

  Implement an application on an ipad and android tablet

Due to the tight deadline, the project team was assembled quickly with ten (10) team members of various backgrounds. There are three (3) offshore developers in India and two (2) QA testers in San Francisco, CA.

  Use of data definition language-data manipulation language

Pick one of the different types of SQL statements (data definition language, data manipulation language, or data control language). Describe how that type of statement is use.

  Imagine that you have been assigned as a project manager to

imagine that you have been assigned as a project manager to manage your companys e-commerce website where customers can

  Write and execute sql definition commands

Write the SQL DDL to create the database that contains each of the relations shown in the above ERD and write and execute SQL definition commands

  Explain relational database design

How would you change the current design and how does your new design address the problems you have identified with the current design.

  Write a program to sort back into a single file

Write a program to sort these back into a single file. Oh, and we only have a few nanoseconds to do it, so you'd better do it with pthreads!

Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd