Create an ERD using Lucid Chart for the following description. Be sure to include all necessary entities, attributes, and correct cardinality in relationships between entities. Don’t forget foreign keys.
You have been asked to build a database for a technology company called TechNow. The company owner needs to keep track of the customers that buy their products, the employees that work at TechNow, the offices that the employees use, the vendors that provide them with products, and the products themselves. Each vendor may interact with several employee representatives and requires this support. Employees in their first year usually don’t have vendors to support, as they are learning the ropes, but as they work there longer and more vendors are reached, they may be assigned their only vendor. The owner wants to track employee names and email addresses, as well as vendor names and locations. Each employee works only in their own private office at TechNow. Some offices are vacant. Vendors provide products to TechNow, like hard drives, desktop cases, and power sources. Each product they sell comes from only one vendor. Some products are made in house, but if a vendor is in the system they must have provided a product. The owner wants to track product names and each product’s unique SKU. Finally, enterprise customers purchase products from TechNow and the data from the transactions needs to be recorded. Each product is often purchased by lots of customers, especially if it is popular. Customers are only put in the system if they have made a purchase, but a product does not need to have been purchased to be stored. The owner wants to keep track of customer names and email addresses.
Create an ERD using Lucid Chart for the following description. Be sure to include all necessary...
The Case Express Delivery (ED) is a Morgantown based home goods company. Customers can call in orders and ED mails the items to the customer. They also email the customers a bill, as seen below. Customers can mail in a check, once they receive the order. ED needs to track whether the order has been paid or not, but the payment information is handled by a third-party vendor. ED needs to create a database to track their customers. Each customer...
I need help. Valley Vineyard Conceptual Model Case Read the case then create an entity-relationship diagram that captures the essence of the problem domain. Identify the entities (diagrammed in a rectangle box) Establish and label the relationships (diagrammed in a diamond) Determine the cardinalities Add the attributes, if you diagram is too busy the attributes can be on a separate page. Be sure to note any assumptions you have made. CASE: Valley Vineyard’s customers are mainly restaurants and wine shops...
Read, read and read and then think about that you can create perfectly an enhanced ERD for the following description. with making sure to include all kind of entities, attributes, and correct cardinality in relationships between entities. Never forget foreign keys. You need to build a database for the Good College. The College database administrator needs to keep track of the students that attend the College, the courses offered by the college, and the college employees. College tracks the first...
Based on the narratives, draw the following ERDs. Make sure you add the Primary Keys, Foreign Keys, verbs that represent the relationship, and mark cardinality (both lower and upper bounds) for each diagram. Apply all 4 ERD rules. A new technology store is opening that specializes in smartphones. The owner wants to create her own database to track each smartphone she sells. Currently, she doesn’t plan to sell anything other than smartphones. For now, the owner only needs to keep...
TM-315 DATABASE SYSTEMS
Please help me to draw an ERD and the Relational Schema and
please mark the Primary and Foreign Key .....
Deliverable:
Word document with grade sheet followed by Part 1 ERD and the
Part 2 relational schema.
Part 1: Draw the ERD for the following situation. 8 pts
Be sure to:
Convert all many-to-many relationships to associative
entities.
Make sure each regular entity has an appropriate identifier.
Make sure attribute names are unique within the ERD
Wally...
Create an Entity-Relationship Diagram (ERD).In the ERD include the following: entities primary keys for all entities attributes - use "good" names for attributes, use only single-valued attributes relationships - use Crow's foot or UML notation; name relationships that could be ambiguous cardinality - minimum (optional/mandatory) and maximum (one or many) on both ends of the relationship - use reasonable assumptions if there is insufficient information in the descriptionStudent/Course registration system for a universityStudents have a unique identification number, first name, middle initial, last name, year...
You are asked to design a data model for The Wagging Tail, an online store that sells products for dogs, e.g. dog collars, dog food, dog toys, dog treats, etc. You want to keep track of three entities: (1) the products that the store sells, (2) customers who purchase the products, and (3) the orders that are made on the website. Draw an ERD diagram and use the following information to help guide your drawing: The database should keep track...
Using this relations scheme:
write these queried in relational algebra
2.List productCode, productName, and productVendor for each
product that has never been ordered in June. Remember that we have
the month function that returns the number of the month component
of a data, and January is month number 1.
3.List the Customers that did not Order any products in
2015.
4.List all CustomerNames who have never had an order go to the
‘Shipped’ status.
1.. products FK product Code product...
Make an ERD including all entities, attributes, relations, and constraints. Please upload as a doc based on everything listed below University Bookstore •University Bookstore has several branches throughout Bloomington, and employees may be assigned to work at any of the branches. •Employees are identified by an ID and have a full name, date of birth, SSN, address, multiple phone numbers, a gender, and a hire date. •A Manager runs a branch and is responsible for all operations at that branch....
Please answer this questions as required
I couldn't delete the old pic so the new one is butter
and for the same question.
RealGree uses the paper form as below to record the weekly (just one week in this 5. A lawn and tree care company ion) informati application to keep track of the information of the part-time employees. Please (a) develop the E-R diagram (8 points). ion about is part-time employees (one form for one employee). The company asks...