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

What does it mean by business process engineering tools, What does it mean ...

What does it mean by business process engineering tools ?

Write definition of dfd, Write definition of DFD? Data Flow Diagram sup...

Write definition of DFD? Data Flow Diagram supplies the information flow and the transforms that are used on the data as it moves from input to output.

IEEE 802.3, what is meant by 345 rule in IEEE 802.3 ?

what is meant by 345 rule in IEEE 802.3 ?

Explain the types of software maintenance, What are the types of software m...

What are the types of software maintenance? Corrective maintenance - Means the maintenance for correcting the software faults. Adaptive maintenance - Means maintenance for a

Who is a stake holder for a software project, Q. Who is a stake holder for ...

Q. Who is a stake holder for a software project? [Stake holder :- something or somebody with direct interest:  a group or person with a direct interest, investment or involvem

Architecture diagram and system design, Writing a report explaining all the...

Writing a report explaining all the work in detail in a professional manner and the report should include all the steps below: 1. Draw up a final Entity-Relationship model compr

Explain inspection, Explain Inspection? Ans) An inspection is more forma...

Explain Inspection? Ans) An inspection is more formalized than a 'walkthrough', typically with 3-8 people containing a moderator, reader, and a recorder to take notes. The subje

What is fault-based testing, 1. Testing that employs a test data selection ...

1. Testing that employs a test data selection method designed to obtain test data capable of demonstrating the absence of a set of pre-specified faults, typically, frequently happe

Advantages and disadvantages of business intelligence, 1) Case A...

1) Case Analysis (maximum of 6 pages per case, double spaced) The following format may be used as a guideline for Case Analysis: Key Issues Identified in Case Sta

Explain cocomo model with its applicable equations, Q. Explain COCOMO model...

Q. Explain COCOMO model with its applicable equations. Describe various attributes of cost drivers used in COCOMO model. Ans. COCOMO denotes for constructive cost model -

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