Give an example of a composite entity (along with the related entities) and list name and...
Give an example of a composite entity (along with the related entities) and list name and primary key for each entity (Do not have to draw diagram).
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Give an example of a composite entity (along with the
related entities) and list name and...
Given the following entities: Student, Class, Instructor,and student grade. List the business rules for each entity....
Given the following entities: Student, Class, Instructor,and student grade. List the business rules for each entity. include relationship type (example: 1:1, 1:M, M:N) for each entity. Include Cardinality: example: the cardinality of X is (1, 1) the cardinality of Y is (0, N)
1. Do a listing that represents the entities and attributes in the Book List. Select or...
1. Do a listing that represents the entities and attributes in
the Book List. Select or create an appropriate primary key column
for each entity. Make sure your data is
atomic. List at
least three entities: Book, Author, and Publisher.
*PLEASE NOTE: I want a listing of the attributes that you think
should be there (e.g. columns split up for atomicity, surrogate
keys, etc.)
*PLEASE NOTE AS WELL: You have to store all of the information
from the original list...
Assume two entities ORDER and PRODUCT and the following business rules: An ORDER can contain one...
Assume two entities ORDER and PRODUCT and the following business rules: An ORDER can contain one or more PRODUCTs. A PROUDCT can be in zero or more ORDERs. How would you convert this model into an ERM that displays only 1:M relationships? Be specific and complete. Draw the resulting ERM. 2. What is the difference between entity integrity and referential integrity? Given an example of each. 3. Suppose you have an EMPLOYEE table which has one row per employee. The...
How to model this scenario in conceptual ER diagram?Bridge entity needed? I have a house-share entity(...
How to model this scenario in conceptual ER diagram?Bridge entity needed? I have a house-share entity( primary key : house-share id) and housekeeper entity (primary key: housekeeper id). At any point in time a housekeeper can only work in one house-share. When a housekeeper finishes an allocation with a particular house-share the allocation is recorded(start date and end date). A house-keeper may return to a house-share they previously worked in; if they do so, a new allocation is recorded. I...
Assignment 7 Activities: Using the order form below identify entities to be used in a relational...
Assignment 7
Activities:
Using the order form below identify entities to be used
in a relational database. Normalize to first, second, and third
normal form. Clearly identify within each form with the tables in
each form and specify any assumptions made.
Utilize the following format for each table:
TableName(attribute,etc)
Indicate Primary Key by underlining the attribute name. List
Foreign Keys as such FK=attribute, below the table
listing.
Example:
Sales Rep (EmployeeID, MTD Sales, YTD Sales, MTD
Commission, YTD Commission,...
Please help me answer these: In the relational database model, an entity consists of one and...
Please help me answer these: In the relational database model, an entity consists of one and only one entity instance (or record). A. True B. False 2. In the relational database model, the foreign key name does NOT have to be the same as the primary key name. A. True B. False 3. Logical relationships between tables (or entities) in the relational database model are created with primary and candidate keys. A. True B. False 4. In the relational database...
Develop an entity relationship diagram relating the following entities: CUSTOMERDATA. ORDER, ORDERITEM, INVENTORY, REFUNDDATA, SHIPMENTINFO Add...
Develop an entity relationship diagram relating the following entities: CUSTOMERDATA. ORDER, ORDERITEM, INVENTORY, REFUNDDATA, SHIPMENTINFO Add a primary key and one attribute to each entity. Use Crow’s Feet notation. Each customer in CUSTOMERDATA entity places zero to many orders in ORDER entity. Each order in ORDER entity belongs to exactly one customer. Each order in ORDER entity must consist of at least one item and can contain many orderitems. Each order item is in exactly one order in ORDER entity....
Suppose your job keeps track of each employee's degree status and university,draw an ER diagram that...
Suppose your job keeps track of each employee's degree status and university,draw an ER diagram that has the following 3 entities,Employee, Degree and University;also list at least 2 attributes in each and indicate what is the primary key within each entity.
Name and describe two types of taxes other than the income tax. Give example of each....
Name and describe two types of taxes other than the income tax. Give example of each. Compare a sales tax to a use tax. Compare progressive, proportional, and regressive taxes. Briefly compare a sole proprietorship to a corporation as a business entity. Why are S corporations and partnerships called flow-through entities?
The following are the main entity types of the academic institution database. For each entity type,...
The following are the main entity types of the academic institution database. For each entity type, we provide some of the corresponding attributes. Use this information in order to: (a) Build an Enhanced E-R diagram; (b) Transform the Enhanced E-R diagram to a relational database. Identify the primary key(s) and the foreign key(s) for each relation. Draw the relational integrality constraints; (c) For each of the relations created, indicate its normal form. If the relation is not in the 3NF,...
1. Do a listing that represents the entities and attributes in
the Book List. Select or create an appropriate primary key column
for each entity. Make sure your data is
atomic. List at
least three entities: Book, Author, and Publisher.
*PLEASE NOTE: I want a listing of the attributes that you think
should be there (e.g. columns split up for atomicity, surrogate
keys, etc.)
*PLEASE NOTE AS WELL: You have to store all of the information
from the original list...
Assignment 7
Activities:
Using the order form below identify entities to be used
in a relational database. Normalize to first, second, and third
normal form. Clearly identify within each form with the tables in
each form and specify any assumptions made.
Utilize the following format for each table:
TableName(attribute,etc)
Indicate Primary Key by underlining the attribute name. List
Foreign Keys as such FK=attribute, below the table
listing.
Example:
Sales Rep (EmployeeID, MTD Sales, YTD Sales, MTD
Commission, YTD Commission,...
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