Observe the ER Diagram for the ABC Retailer: ABC RETAILER (ERD) PromolD PromoName Date ProductID Description AssociatedWith PROMOTION PRODUCT BelongsTo BrandID BRAND BrandName Which of the following is true according to the ABC Retailer ER diagram? O We cannot keep track of products that do not belong to any brand O We can keep track of products that do not belong to any brand O We cannot keep track of products that belong to any brand O We must keep track of products that do not belong to any brand O All of the above

Q: Jersey athletics has decided to put a periodic survey on their website to engage more users in brand…

A: The question asks for a summary of the Entity-Relationship Diagram (ERD) using the Crow's Foot…

Q: Display only the sales territories that have more than one salesperson.

A: The HAVING clause is used in SELECT statement as we cannot use the WHERE clause with aggregate…

Q: latitude ER Diagram longitude description Convert to relation schema location last_visited

A: A rеlational schеma is a bluеprint for a rеlational databasе. It dеfinеs thе tablеs in thе databasе,…

Q: Design the Class Diagram (that contains at least 10 classes, show appropriate relationships,…

A: Class Diagram:

Q: A prospective key is an attribute that is part of a composite primary key.

A: One primary key is a composite one.   The primary key in database management systems consists of two…

Q: ERD and Keys A contractor’s main entities are its customers, employees, projects, and equipment. A…

A: The entities used in ER Diagram are: CUSTOMER EMPLOYEE EQUIPMENTS PROJECT The attributes for the…

Q: ERD and Keys A hotel has many rooms.  A guest can make a reservation for one room or multiple…

A: ERD is called the Entity-Relationship model. ERD diagrams are used to draw the relationships between…

Q: 8. Write the schema for the following ER-Diagram

A: Relational schema is the tabular representation of the data in given ER diagram. Based on type of…

Q: Identify at least four business rules for the following ER diagram. aircraft PK aircraft D seats PK…

A: The following entities and relationships are depicted in the diagram: Entities: aircraft seat…

Q: SERVICE_ID PROPERTY_ID CATEGORY_NUMBER OFFICE_ID DESCRIPTION STATUS EST_HOURS SPENT_HOURS…

A: Select Category_number, SUM(SPENT_HOURS) "HOURS_SPENT" from Department Group By Category_number;…

Fundamentals of Managing Data

Data management is creating, organizing, storing and managing the data collected and created by any organization.Effective data management is a crucial part of today's world. Data management provides analytical information on the vast amount of data collected from business applications daily, which helps make critical business decisions and plan and bring out the best strategies.