Questions
PostgreSQL 1. Write a query to join two tables employees and departments to display the department...

PostgreSQL

1. Write a query to join two tables employees and departments to display the department name, first_name and last_name, hire date, and salary for all managers who have more than 15 years of experience.

2. Write a query to join the employees and departments table to find the name of the employee including the name and last name, department ID and department name.

3. Write a SQL query to join three tables of employees, departments, and locations to find the names, including first and last name, job title, department name and ID, of employees working in London.

4. Write a query to concatenate the two tables of employees and yourself to find the employee id, last_name as Employee, and their manager_id and last name as Manager.

5. Write a query to connect to the employee table and to yourself to find the name, including first_name and last_name, and the hiring date for those employees who were hired after employee Jones.

6. Write a query to combine the two employee and department tables to get the department name and the number of employees working in each department.

7. Write a query to find employee ID, title and number of days he worked, who worked in department with ID 90.

8. Write a query to combine the two employee and department tables to display the department ID, department name, and manager name.

In: Computer Science

Equipment is purchased on July 1, 2011 for $250,000. The estimated salvage value and useful life...

Equipment is purchased on July 1, 2011 for $250,000. The estimated salvage value and useful life are $25,000 and 5 years, respectively. What is the depreciation expense for 2012 under: (1) straight-line method, (2) sum-of-years-digits method, and (3) double-declining balance method

The answer is  S-L: 45,000 DDB: 80,000SYD:67,500

Can you please explain step by step solution.

In: Accounting

Compare and contrast the three corporate concentration strategies. Identify a struggling company that could benefit from...

Compare and contrast the three corporate concentration strategies. Identify a struggling company that could benefit from one of these strategies? What might you advise this company’s executives to do differently? Clearly show the reasons you consider the firm to be struggling and link these reasons to your advice.

In: Operations Management

1- Write a c++ program that asks the user to enter his/her name using one variable...

1- Write a c++ program that asks the user to enter his/her name using one variable only. The name must
be then printed out in capital letter with the family name first and the last name second.

In: Computer Science

Usually marketing strategies have to be adjusted due to country specific conditions. Considering a product strategy...

Usually marketing strategies have to be adjusted due to country specific conditions. Considering a product strategy only, outline the
factors that have to be considered in the decision making process for standardisation versus adaptation. Which factors do you feel
present marketers with the greatest challenge and why?

In: Operations Management

I need a positive feedback about the common below made by my classmate. All organizations weight...

I need a positive feedback about the common below made by my classmate.

  • All organizations weight pros and cons when making large decisions. When making the decision to pursue a global strategy the organization must take into account factors of probable investment that is required, the amount of traffic by estimation and much more. In the end if the business feels that in the long run revenue will succeed then the company would pursue the investment to strategize to go global.
  • The most valuable resource a company can have is their reputation. Expanding globally can harm the reputation of the company that has other worries such as suppliers, competitors and third party vendor to set up the business and may not work the way it should. A reputation is already set because of the services and quality provided and if it change happens it could potentially harm the business.

For example, Apple does business globally. Their main supplier was Foxconn in China, this changed in 2010 when they were accused of low wages, long hours, poor working and living conditions basically sweatshop conditions and it backlashed. Now Apple has diversified their suppliers

  • Cultural distance is the cultural disparity between the internationally expanding firm’s home country and its targeted host country. A firm’s decision to enter certain international markets is influenced by cultural differences. A greater cultural difference can increase the cost and uncertainty of conducting business overseas. Basically cultural distance increases the liability of foreignness. For example McDonalds started selling Beef burgers in India which is a country populated my majority vegetarians for religious purposes therefore affecting the business.
  • IKEA’s external challenges include finding new sources of supply to support more store openings, opening new stores to encourage growth, increased competition, economic conditions, change in the market. Internal challenges include maintaining growth and design, replacing CEO’s, keeping costs low. Finding new sources of supply to support each store may be the greatest threat in my opinion. But if they focus on low cost it is possible.
  • Expanding takes a lot of time, effort and attention to detail. It is important to take into consideration the deforestation and global warming issue

In: Operations Management

# columns are [0]title [1]year [2]rating [3]length(min) [4]genre [5]budget($mil) [6]box_office_gross($mil) oscar_data = [ ["The Shape of...

# columns are [0]title [1]year [2]rating [3]length(min) [4]genre [5]budget($mil) [6]box_office_gross($mil)
oscar_data = [
["The Shape of Water", 2017, 6.914, 123, ['sci-fi', 'drama'], 19.4, 195.243464],
["Moonlight", 2016, 6.151, 110, ['drama'], 1.5, 65.046687],
["Spotlight", 2015, 7.489, 129, ['drama', 'crime', 'history'], 20.0, 88.346473],
["Birdman", 2014, 7.604, 119, ['drama', 'comedy'], 18.0, 103.215094],
["12 Years a Slave", 2013, 7.71, 133, ['drama', 'biography', 'history'], 20.0, 178.371993],
["Argo", 2012, 7.517, 120, ['thriller', 'drama', 'biography'], 44.5, 232.324128],
["The Artist", 2011, 7.942, 96, ['drama', 'melodrama', 'comedy'], 15.0, 133.432856],
["The King\'s Speech", 2010, 7.977, 118, ['drama', 'biography', 'history'], 15.0, 414.211549],
["The Hurt Locker", 2008, 7.298, 126, ['thriller', 'drama', 'war', 'history'], 15.0, 49.230772],
["Slumdog Millionaire", 2008, 7.724, 120, ['drama', 'melodrama'], 15.0, 377.910544],
["No Country for Old Men", 2007, 7.726, 122, ['thriller', 'drama', 'crime'], 25.0, 171.627166],
["The Departed", 2006, 8.456, 151, ['thriller', 'drama', 'crime'], 90.0, 289.847354],
["Crash", 2004, 7.896, 108, ['thriller', 'drama', 'crime'], 6.5, 98.410061],
["Million Dollar Baby", 2004, 8.075, 132, ['drama', 'sport'], 30.0, 216.763646],
["The Lord of the Rings: Return of the King", 2003, 8.617, 201, ['fantasy', 'drama', 'adventure'], 94.0, 1119.110941],
["Chicago", 2002, 7.669, 113, ['musical', 'comedy', 'crime'], 45.0, 306.776732],
['A Beautiful Mind', 2001, 8.557, 135, ['drama', 'biography', 'melodrama'], 58.0, 313.542341],
["Gladiator", 2000, 8.585, 155, ['action', 'drama', 'adventure'], 103.0, 457.640427],
["American Beauty", 1999, 7.965, 122, ['drama'], 15.0, 356.296601],
["Shakespeare in Love", 1998, 7.452, 123, ['drama', 'melodrama', 'comedy', 'history'], 25.0, 289.317794],
["Titanic", 1997, 8.369, 194, ['drama', 'melodrama'], 200.0, 2185.372302],
["The English Patient", 1996, 7.849, 155, ['drama', 'melodrama', 'war'], 27.0, 231.976425],
["Braveheart", 1995, 8.283, 178, ['drama', 'war', 'biography', 'history'], 72.0, 210.409945],
["Forrest Gump", 1994, 8.915, 142, ['drama', 'melodrama'], 55.0, 677.386686],
["Schindler\'s List", 1993, 8.819, 195, ['drama', 'biography', 'history'], 22.0, 321.265768],
["Unforgiven", 1992, 7.858, 131, ['drama', 'western'], 14.4, 159.157447],
["Silence of the Lambs", 1990, 8.335, 114, ['thriller', 'crime', 'mystery', 'drama', 'horror'], 19.0, 272.742922],
["Dances with Wolves", 1990, 8.112, 181, ['drama', 'adventure', 'western'], 22.0, 424.208848],
["Driving Miss Daisy", 1989, 7.645, 99, ['drama'], 7.5, 145.793296],
["Rain Man", 1988, 8.25, 133, ['drama'], 25.0, 354.825435],
]


def column_sum(data, column):
result = 0
for row in data:
result += row[column]
return result

def column_mean(data, column):
total = column_sum(oscar_data, 6)
mean = total / len(data)
return mean


# < write code here >
  

mean_score = column_mean(oscar_data, 2)
print('Average rating: {:.2f}'.format(mean_score))

mean_length = column_mean(oscar_data, 3)
print('Average length: {:.2f} min.'.format(mean_length))

mean_budget = column_mean(oscar_data, 5)
print('Average budget: ${:.2f} mil.'.format(mean_budget))

mean_gross = column_mean(oscar_data, 6)
print('Average revenue: ${:.2f} mil.'.format(mean_gross))

In: Computer Science

Many have thought that if we don't have free will, then punishment and reward would not...

Many have thought that if we don't have free will, then punishment and reward would not make sense. Do you agree with this? Why or why not? Would be good to do away with punishment? Why or why not? (Consider: Punishment can be used for retribution, i.e., as giving a person their just deserts, but it can also be used as a deterrent. Reward can be used to recognize a person's accomplishment because they deserve it, but it can also be used to motivate them to do certain things). Write at least one paragraph in your initial post

In: Psychology

two pages paper on any topic related to HR and what you have learned and how...

two pages paper on any topic related to HR and what you have learned and how you will take this knowledge into your future career.

In: Operations Management

How do organizations decide and adopt emerging technologies today? What have you observed? In your our...

How do organizations decide and adopt emerging technologies today?

What have you observed? In your our own organization? Anywhere else? The way they decide, does it work?

In: Operations Management

2. The early Milesians (Thales, Anaximander, Anaximenes) each sought an arche as the foundation for existence....

2. The early Milesians (Thales, Anaximander, Anaximenes) each sought an arche as the foundation for existence. Beginning with an explanation of how Thales derived his solution to the question “What is real?” detail the arche of each. This should include an examination of why each found his predecessors solution problematic.

In: Psychology

Question 1 Given two integers x and y, the following recursive definition determines the greatest common...

Question 1
Given two integers x and y, the following recursive definition determines the greatest common divisor of x and y, write gcd(xy). Write a recursive function, gcd, that takes two integers as parameters and returns the greatest common divisor of numbers. Also write a program to test your function. Write a recursive function, reverseDigits, that takes an integer as a parameter and returns the number with the digits reversed. Also write a program to test your application.

In: Computer Science

A course consists of many subjects, but each subject can only be associated with one course....

A course consists of many subjects, but each subject can only be associated with one course. Each subject is co-ordinated by a lecturer and each lecturer can co-ordinate many subjects. Subjects and courses are identified by subject and course codes, and have a name. Lecturers are identified by an ID and have a name, room number and telephone contact number

.a. Using Enterprise Architect, create an ERD representing the above scenario. You need to include the cardinality of the relationships.

b. Transform the ERD to a set of relational tables.

In: Computer Science

A)How does contractionary monetary policy use interest rates and required reserves to achieve its goals of...

A)How does contractionary monetary policy use interest rates and required reserves to achieve its goals of reducing inflation? Answer:

B) The Fed is the most independent federal agency there is, with loyalty first to the American public and the wellbeing of its economy, but just how truly independent is it from the political motives of politicians, especially from those of White House’s? Answer:

In: Economics

Write an ALP to control the different direction of rotation of stepper motor​ ​      Stepper...

Write an ALP to control the different direction of rotation of stepper motor​

     Stepper motor has the following specifications​

  • Stepper motor has 4 windings ​

  • Speed =12 rpm​

  • No of teeth =200 ​

In: Computer Science