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Consider the following EER diagram. Map it into a relational database schema. Hi

ID: 668770 • Letter: C

Question

Consider the following EER diagram. Map it into a relational database schema. Hint: Do not forget to add UNIQUE and NOT NULL in the schema where they needed.

Note: For simplicity, the domain for each attribute can be omitted in the schema.

The database schema should use the following format for each table:
Relation_name (attribute name list), PK: ..., FK (if any): ... references ..., UNIQUE, NOT NULL

For example:
Project (ProjectNo, ProjectName), PK: ProjectNo.

Employee (EmployeeNo, Name, WorksOn), PK: ProjectNo, FK: WorksOn references Project, Workson: UNIQUE, NOT NULL.

* Assume that workson is a 1:1 total relationship for Employee between Employee and Project.

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Explanation / Answer


create table Project(projectno integer(11) PK,ProjectName varchar(11));

create table Employee(EmployeeNo integer(11) FK,WorksOn varchar(11) Unique);

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