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Each Row of the Table Department Describes a Department

question 54

Multiple Choice

$Table~Employee\\\begin{array}{|l|l|l|l|l|}\hline \text { Empno } & \text { Empname } & \text { Empdeptno } & \text { Empsalary } & \text { Emptitle } \\\hline\end{array}$
Each row of the table Department describes a department. Deptno is the primary key. Deptmgr (Department manager) refers to Empno in table Employee.

$Table~Department\\\begin{array}{|l|l|l|l|}\hline \text { Deptno } & \text { Deptname } & \text { Deptcity } & \text { Deptmgr } \\\hline\end{array}$
Each row of the table Project describes a project. The primary key is Projno. Projmgr (project manager. refers to Empno in the table Employee.

$Table~Project\\\begin{array}{|l|l|l|}\hline \text { Projno } & \text { Projname } & \text { Projmgr } \\\hline\end{array}$
The table Projstaff indicates the staff assigned to various Projects.

$Table~Project\\\begin{array}{|l|l|l|l|l|}\hline \text { Prstno } & \text { Prstempno } & \text { Prsthours } & \text { Prstdate } & \text { Prstasgtno } \\\hline\end{array}$
The combination of columns Prstno, Prstempno is a candidate key. There could be other candidate
keys. Prstempno is the Empno in table Employee of the employee working on project number Prstno, which refers to Projno in the table Project. The meaning of Prstasgtno is left undefined.
-The relationship connecting Employee to Project and expressing that an employee works on a project (Link table Projstaff) is:

Definitions:

Disposable Income

The economic provision for households' saving and spending activities post income tax calculations.

Saving

Income that is not expended on immediate consumption but rather reserved for investing or future purposes.

Disposable Income

Financial resources at the disposal of households for the aims of saving and spending after income tax engagements.

Saving

The portion of income not spent on consumption or taxes, typically put aside for future use or investment.