07 Jun DEVRY BIS245 WEEK 3 AND WEEK 4 DISCUSSIONS
EEK 3
Conceptual Database Design (graded)
Why do you think organizing data into tables and relationships is a good way to design a database? How do related tables improve the accuracy of data in a database?
Requirements Analysis (graded)
Describe some typical pairs of entities that you think might be common in business, and describe their relationships, whether many-to-many, one-to-many, many-to-one, or one-to-one. Explain why you think that a particular relationship applies to that pair of entities.
WEEK 4
Creating Queries from Woodcraft Database (graded) |
For purposes of this discussion, assume that Woodcraft is an online store that sells wooden craft kits to churches, scouting organizations, and other groups that need crafts for children. Save Woodcraft’s database to your computer or space in our iLab environment; it’s found at this link: Week 4 Woodcraft Database. The database is also found in the first page of Doc Sharing. View the content and structure of the database, and then choose one of the questions that follow to answer.
Later in the week, you may answer a second or third question, but let’s start off with everyone answering one at a time.
a. What kinds of queries would be useful to Woodcraft, assuming that it wants to improve its sales, relationship with its customers, or other aspects of its business? Describe what information you might want to select from the database in the form of a query, and list the specific columns and data that the query would produce. Assume that they have hundreds of customers, rather than the short list found in the database file.
b. Suggest additional tables and information that you would like to see in a database like this, the kinds of queries that it would facilitate, and how such queries would help the company improve its business goals of profitability, cost reduction, or other business strategies.
c. Using the Woodcraft database file, create some queries that use concepts found in the textbook, as well as this week’s lab. Post a screenshot of your query design and result set in a Word document.
d. Research one new feature that you haven’t studied as it relates to query generation, and show how you could use that feature to create a useful query. Use the Woodcraft database to showcase this query-generation technique and post it in this discussion.
Creating Queries from Northwind Database (graded) |
In Doc Sharing, you will find an Access database labeled Week 4 Discussion Northwind. Save the database to your computer and open the database using Access. Answer the questions below. Please assist one another.
a. View the design of the database in the Database Tools-Relationships window. Describe some queries that would be useful to Northwind Traders as it strives to increase sales, profits, or reduce expenses. Be specific, listing the tables, columns, and data that you would extract from the Northwind Database. Also, indicate why such queries are useful from a business standpoint.
b. In Microsoft Access, create some original queries, posting a screenshot of your query design and query results in an MS Word document
c. Create a few queries that allow you to practice concepts from the Lab. Please, don’t simply post queries from this week’s lab assignment! Post a screenshot of the query design and the results set in a Word document. Also, describe how this query could help managers make a business decision.
d. Relying on the textbook, the lecture, or Internet research, describe query generation techniques that you haven’t yet applied in this week’s lab. Describe what the querying technique is and how it is useful. For example, you might research the concept of a parameter query, describe what it is, and then create such a query in the Northwind database. Post a screenshot of the query design and the query results as an MS Word document to this thread for discussion.
e. Assist your classmates in modifying their queries if they run into difficulties.
This section lists options that can be used to view responses.
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