Can somebody make an ER diagram in Chen notation out of this data model
Can somebody make an ER diagram in Chen notation out of this data model
Homework Answers
The Chen notation of ER diagram have different design elements.It is used to show the logical structure of databases.
The entities are represented in rectangles.
The relationships are represented in diamond shaped boxes.
Attributes are drawn as ovals and are connected with a line to exactly one entity or relationship set.
A double line indicates a participation constraint that is surjectivity.
A thick line indicates bijectivity.
Following ER diagram in Chen notation representing the student and teacher relationship in a school
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Can somebody make an ER diagram in Chen notation out of this
data model
Create an ER from the following requirement. Use Chen notation with cardinality and participation notation. If...
Create an ER from the following requirement. Use Chen notation with cardinality and participation notation. If you make an assumption that is not in the requirements, please note this on the ER. We are going to do a database for the film critic of a newspaper. The critic reviews movies and would like to keep track of the movie’s title, category (Humor, Drama, Action), and the date the movie was released. A title may have more than one category. We...
Question 4. ER model (5 points). You are asked to design the ER diagram for a database to manage ...
Question 4. ER model (5 points). You are asked to design the ER diagram for a database to manage data for athletes athletic game. Requirements are as follows: Each participating team has a name and a manager. Each athlete has a unique athlete ID, and is also described by first name and last name, gender and age. A team has many athletes but an athlete only belongs to one team. Each sport has a unique code and some sport name....
3. b) Construct an appropriate conceptual Entity Relationship Diagram (ERD) for the requirements specified below. The Chen notation should be used to create the diagram. An insurance company has cust...
3. b) Construct an appropriate conceptual Entity Relationship Diagram (ERD) for the requirements specified below. The Chen notation should be used to create the diagram. An insurance company has customers and offers products. When a customer takes out insurance they buy a policy. The minimum amount of information on the policy is the type of insurance taken out, the annual premium and the full name of the insured. A so called insured person does not necessarily have to be a...
can someone please make a relational model and an ER diagram for the following scenario. P.s...
can someone please make a relational model and an ER diagram for the following scenario. P.s last person who made it, i couldnt read the words. I NEED IT AS SOON AS POSSIBLE PLEASE. Lets first start with the scenario, users register into the system and shares his some information as mentioned in the que. Some more information about themselves in their profile: what sort of job they do, something about their family, and what they like to watch on...
Map the ER diagram into a relational database schema. Describe each relation schema in parenthesized notation...
Map the ER diagram into a relational database schema. Describe each relation schema in parenthesized notation (not SQL) underlining the primary key. For each relation, describe any applicable integrity constraints, e.g., foreign key, referential integrity, not null, etc.
ER to Relational Mapping a) i) Reverse engineer the following schema to make an ER Diagram...
ER to Relational Mapping
a) i)
Reverse engineer the following schema to make an ER Diagram
A (),
B (),
C ()
B.a references A.a; C.ab references B.ab
ii)
EMP (,
ename, supervisor, Dno), DEP (,
dname)
EMP.Dno referencesDEP.Dno; EMP.supervisor references EMP.ssn
bold is underline.
Hello I need to Convert the ER Diagram to a relational model. Analyze each table to...
Hello I need to
Convert the ER Diagram to a relational model.
Analyze each table to make sure that they are in 3rd Normal
Form.
Write the level of normalization for each table and state in
your report why it is an acceptable level of normalization.
Physical Database Design: identify the data types of each
columns (in each table).
Gender Register Date Name Doctor ID Patient ID Room No Patient Salary qualification Consults Tel No DOB Staff Name Gender Staff...
Create an ER diagram to model the following specification: A football team has multiple players Each...
Create an ER diagram to model the following specification: A football team has multiple players Each team has a name and a home city. No two teams can have the same name and home city combination. Every player must be on a team. Each player has a name and a player number; the combination of the player number and the team information is unique
Create an ER diagram to model the following specification: A football team has multiple players Each...
Create an ER diagram to model the following specification: A football team has multiple players Each team has a name and a home city. No two teams can have the same name and home city combination. Every player must be on a team. Each player has a name and a player number; the combination of the player number and the team information is unique
Figure 2 shows the ER diagram that captures important information about Students, Courses and classes in MIT.
Figure 2 shows the ER diagram that captures important information about Students, Courses and classes in MIT. Figure 2: Data Model for Student course registration a. Convert the ER diagram into a relational database schema. Be certain to indicate primary keys (underline). Eg. Student (StudentID:text: Student_name:text,.....) NB: You are required to identify many-to-many relationships in the ER diagram and include Associative / Bridge entities.
Question 4. ER model (5 points). You are asked to design the ER diagram for a database to manage data for athletes athletic game. Requirements are as follows: Each participating team has a name and a manager. Each athlete has a unique athlete ID, and is also described by first name and last name, gender and age. A team has many athletes but an athlete only belongs to one team. Each sport has a unique code and some sport name....
3. b) Construct an appropriate conceptual Entity Relationship Diagram (ERD) for the requirements specified below. The Chen notation should be used to create the diagram. An insurance company has customers and offers products. When a customer takes out insurance they buy a policy. The minimum amount of information on the policy is the type of insurance taken out, the annual premium and the full name of the insured. A so called insured person does not necessarily have to be a...
ER to Relational Mapping
a) i)
Reverse engineer the following schema to make an ER Diagram
A (),
B (),
C ()
B.a references A.a; C.ab references B.ab
ii)
EMP (,
ename, supervisor, Dno), DEP (,
dname)
EMP.Dno referencesDEP.Dno; EMP.supervisor references EMP.ssn
bold is underline.
Hello I need to
Convert the ER Diagram to a relational model.
Analyze each table to make sure that they are in 3rd Normal
Form.
Write the level of normalization for each table and state in
your report why it is an acceptable level of normalization.
Physical Database Design: identify the data types of each
columns (in each table).
Gender Register Date Name Doctor ID Patient ID Room No Patient Salary qualification Consults Tel No DOB Staff Name Gender Staff...
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