Advantages of Union Operator in Relational Database- Discussion


Provide 1 reference. Answer the following discussion question: 

A relational Database Model allows database users to analyze data thoroughly. To accomplish this, advanced commands such as UNION and INTERSECT may be used. Describe a business scenario where a UNION relational set operator may be used to merge two similar data sets. Within the context of your business scenario, analyze the analysis and data consistency advantages of using a UNION operator rather than simply merging two data sets into one result table.

Don't use plagiarized sources. Get Your Custom Essay on
Advantages of Union Operator in Relational Database- Discussion
Just from $10/Page
Order Essay

Suppose you are tasked with finding common data elements amongst various data sets. Specify how an INTERSECT operator may assist you in accomplishing this task. Construct a query that can perform the same function as the INTERSECT operator without using the “INTERSECT” syntax within the query.

Respond to this Discussion with at least 1 paragraph: 
“I choose to answer this discussion thread using some work-related examples of mine. I believe by doing so will allow people to see the real-world application of the operators specified.
I work for a direct marketing company and we do a lot of data processing and mailing for various clients. Recently I was tasked with an assignment where one of our clients had multiple lists (three to be precise). They only wanted one of their marketing packages mailed to each client on their list. So let’s say for example I Emmanuel was on the 2019, 2018 and 2017 list. They did not want to mail to me 3 times. They only wanted me to receive a single packet. In this case a simple union on the three lists yielded a result set free of all duplicates. Had I simply merged the data, then someone like me would have gotten multiple packages rather than the one package intended. From a business standpoint would have also been a waste.
Again, another work scenario regarding intersect. The client had two lists.  One list had customers who listen to and donated financially to Public radio. The other had customers who listen to and donated to public TV. The client only wanted their marketing package going to people who donated to both Radio and TV. In this case a simple intersect was able to do the trick.
So if I wrote a query using intersect it would look like the following:
Select customer_ID, prefix, first_name, last_name, address_line1, address_line2, city, state, zip from TableTV
 Select customer_ID, prefix, first_name, last_name, address_line1, address_line2, city, state, zip from TableFM
I could also write this query without intersect by using an inner join as follows:
Select TV.customer_ID, TV.prefix, TV.first_name, TV.last_name, TV.address_line1, TV.address_line2,, TV.state, from TableTV TV
Join TableFM FM ON FM.customer_ID = TV.customer_ID
I could also use a subquery by doing the following:
Select customer_ID, prefix, first_name, last_name, address_line1, address_line2, city, state, zip from TableTV WHERE customer_ID IN (Select customer_ID from TableFM)
There are scenarios where the ID might not be the same with some clients. In this case the ID’s were the same. But let’s say if the ID’s were different then there are algorithms we run on the name and address fields to create a keyline which can then be used for matching purposes. Will however keep this simple as in both cases the job was very simple.”

Place your order
(550 words)

Approximate price: $22

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
The price is based on these factors:
Academic level
Number of pages
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more

Order your essay today and save 30% with the discount code ESSAYSHELP