COnvert the REA Diagram to tables. At least 2 Relevant Attributes for each.
Table, Primary Key, Foreign Key, Attribtes
Homework Answers
In the above REA diagram, the following are the tables:
Purchase and Cash Payment, Vendor and Employee ---------- Tables
Inventory --- Primary key for purchase table
Cash ---- primary key for cash payment table
Employee and vendor --- foreign keys for the purchase table and cash payment
Add Answer to:
COnvert the REA Diagram to tables. At least 2 Relevant
Attributes for each.
Table, Primary Key,...
The primary key for M:N relationship tables O is a single attribute. @ always consists of...
The primary key for M:N relationship tables O is a single attribute. @ always consists of two attributes. O is the primary key of the most important entity linked to that relationship does not exist. Many-to-many relationship tables only use foreign keys
2. Convert the following REA diagram to tables by applying the conversion rules described in this...
2. Convert the following REA diagram to tables by applying the conversion rules described in this chapter. Customer Places Order Process Order Reserves Inventory Take Order Sales Clerk Causes Ships Shipping Clerk Reduces Ship Product O Receives F Customer Duality Remits Increases Receive Cash 0 Cash Cash Receipts Clerk Processes Remittance
Questions: Assume you are creating a database for IS paint store. Suppose you have an ER diagram ...
Questions: Assume you are creating a database for IS paint store. Suppose you have an ER diagram like the following: Please answer the following questions. Explain your answer. 1. Convert the ER diagrams to relational tables. 2. Specify primary keys and foreign keys in each table. For foreign keys, specify which primary key it references to. 3. Please create the tables in SQL for the relational tables in our ER diagrams. You also need to define primary keys and foreign...
Please convert figure 9.9 in p305 into relational schemas. In the table, the primary key and...
Please convert figure 9.9 in p305 into relational
schemas.
In the table, the primary key and foreign keys (arrows)
must be identified.
Engin size CAR Vin Price VEHICLE d TRUCK Tonnage Model N Date SUV No seats SALE SALESPERSON CUSTOMER Address City Street Sid Name Ssn State Name Figure 9.9 EER diagram for a car dealer
ERD Primary Key Problems A partial ERD diagram for the student registration process is depicted below....
ERD Primary Key Problems A partial ERD diagram for the student registration process is depicted below. Examples of the in- formation desired to be tracked for each entity is included below the title of the entity. List ALL of the tables you would need to include in your database for this portion of the ERD diagram. Also list a Primary Key(s) and any Foreign Key(s) that would be included in each table (if there would be no Foreign Key, write...
True or False questions: 1. A data type mismatch error would occur when the primary key...
True or False questions: 1. A data type mismatch error would occur when the primary key data data type is auto number and the foreign key in the related table is number. 2. The data type long integer is the same as integer. 3. When using SQL, the SELECT clause isolates tables in the database. 4. A Referential Integrity violation occur when the primary key is null. 5. When an REA model has 7 entities ,2 linking tables, 3 Resource...
The employee is table, the best candidate for primary key is Select one: a. Department ID...
The employee is table, the best candidate for primary key is Select one: a. Department ID b. Employee hiredate c. Employee ID d. Employee salary Question 2 A primary key can be composed of more than one attribute. Select one: True False Question 3 A foreign key allows you to join two tables. Select one: True False Question 4 Given two tables, department (dept_id, dept_location, dept_name) and EMPLOYEE(emp_id, emp_name, emp_dept_id, emp_name, emp_salary), which attribute (column) is the foreign key? Select...
Consider the following three tables, primary and foreign keys. Table Name SalesPeople Attribute Name  
Consider the following three tables, primary and foreign keys. Table Name SalesPeople Attribute Name Type Key Type EmployeeNumber Number Primary Key Name Character JobTitle Character Address Character PhoneNumber Character YearsInPosition Number Table Name ProductDescription Attribute Name Type Key Type ProductNumber Number Primary Key ProductName Character ProductPrice Number Table Name SalesOrder Attribute Name Type Key Type SalesOrderNumber Number Primary Key ProductNumber Number Foreign Key EmployeeNumber Number Foreign Key SalesOrderDate Date Assume...
8. True or False? 8.The primary key of the Employees table would be posted in the...
8.
True or False?
8.The primary key of the Employees table would be posted in the
Production Steps table as a foreign key.
26.The primary key of the Production Steps table would be posted
in the Production Plan table as a foreign key.
39. The link between the Products and Production Plan tables
would be implemented as a linking table.
0.. Materials Production Steps 0... 0.. Production Plan Employees 0..* 1..1 1..1 Products are Products 0.. Production 0..* Authorization develope.
A. For a relationship to be defined, we need at least two relations (tables). [2] a....
A. For a relationship to be defined, we need at least two relations (tables). [2] a. TRUE b. FALSE B. Aggregate functions can be used in a SELECT clause without GROUP BY on a column of a table [2] a. TRUE b. FALSE C. A table which satisfies 3NF (Third Normal Form) can violate 2NF (Second Normal Form) a. TRUE [2] b. FALSE D. In a table the foreign key attribute can have null value. a. TRUE [2] b. FALSE...
The primary key for M:N relationship tables O is a single attribute. @ always consists of two attributes. O is the primary key of the most important entity linked to that relationship does not exist. Many-to-many relationship tables only use foreign keys
2. Convert the following REA diagram to tables by applying the conversion rules described in this chapter. Customer Places Order Process Order Reserves Inventory Take Order Sales Clerk Causes Ships Shipping Clerk Reduces Ship Product O Receives F Customer Duality Remits Increases Receive Cash 0 Cash Cash Receipts Clerk Processes Remittance
Please convert figure 9.9 in p305 into relational
schemas.
In the table, the primary key and foreign keys (arrows)
must be identified.
Engin size CAR Vin Price VEHICLE d TRUCK Tonnage Model N Date SUV No seats SALE SALESPERSON CUSTOMER Address City Street Sid Name Ssn State Name Figure 9.9 EER diagram for a car dealer
ERD Primary Key Problems A partial ERD diagram for the student registration process is depicted below. Examples of the in- formation desired to be tracked for each entity is included below the title of the entity. List ALL of the tables you would need to include in your database for this portion of the ERD diagram. Also list a Primary Key(s) and any Foreign Key(s) that would be included in each table (if there would be no Foreign Key, write...
8.
True or False?
8.The primary key of the Employees table would be posted in the
Production Steps table as a foreign key.
26.The primary key of the Production Steps table would be posted
in the Production Plan table as a foreign key.
39. The link between the Products and Production Plan tables
would be implemented as a linking table.
0.. Materials Production Steps 0... 0.. Production Plan Employees 0..* 1..1 1..1 Products are Products 0.. Production 0..* Authorization develope.
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