Explain the purpose of an outer join, Software Engineering

Assignment Help:

(a) What is a view?

(b) What is the implication of creating a view with the select * statement in the view definition?

(c) Make reference to the relational schema given in Appendix I to answer this question. Create a VIEW called SALARY_VU based on the employee last names, first names, department names and salaries for those employees whose monthly salary is greater than 10000. Label the column Employee Last Name, Employee First Name, Department and Salary respectively. Make sure to encrypt the view.

(d) Explain the purpose of an Outer Join.

(e) In the HR schema given in the Appendix II, there are certain employees who are not assigned to any department and there is a few departments where no employee has been assigned yet.

(i) Write SQL code to display the employee Last name, the department_id and the department name for all employees. Your answer should display even those employees who have not been assigned to any departments.

(ii) Write SQL code to display the employee Last name, the department_id and the department name for all employees. Your answer should display even those departments which have no employee assigned to the departments.


Related Discussions:- Explain the purpose of an outer join

Explain the concept of decision tables, Explain the concept of Decision Tab...

Explain the concept of Decision Tables Decision table models complex logic into precise yet compact way. A decision table lists causes and effects in a matrix. Every column

Usual stages of the simplified design process, Q. Usual stages of the simpl...

Q. Usual stages of the simplified design process? Pre-production design Design brief it is an early often the beginning statement of design goals Analysis i

Explain capability maturity model, Overview You are a Systems Analyst w...

Overview You are a Systems Analyst working for Zeppelin Industries Inc. Many of the software projects your company attempts to deliver are failing or have already failed. The

Compute the mccobes cyclomatic complexity, Q. Compute the McCobes cyclomati...

Q. Compute the McCobes cyclomatic complexity? (i) compute the McCobe's cyclomatic complexity (ii) Find out independent path Ans (i) Cyclomate complexity V (

State the both cardinality and modality, Define Cardinality & Modality. ...

Define Cardinality & Modality. Cardinality: Specification of the number of occurrences of one that can be correlated to number of occurrences of another. Modality: The Moda

Data dictionary, What is data dictionary entry explain

What is data dictionary entry explain

Software document, explain software document.create the necessary documents...

explain software document.create the necessary documents for employee management system.

Describe the formal software process model, Question 1: (a) Describe t...

Question 1: (a) Describe the Formal Software Process Model. (b) What are the main strengths of the Formal Software Process Model ? (c) Why is the Software Process Mode

Software Metrics, How to interpret software metrics(any metrics)...i need a...

How to interpret software metrics(any metrics)...i need an example

Write Your Message!

Captcha
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