A Relational Algebra Operator Produces the Following Result on the Table

question 38

Multiple Choice

A relational algebra operator produces the following result on the table Department: $$\begin{array} { | l | l | l | l | } \hline \text { Deptno } & \text { Deptname } & \text { Deptcity } & \text { Deptmgr } \\\hline 100 & \text { Logistics } & \text { Wichita } & 666 \\\hline 300 & \text { Marketing } & \text { Pierre } & 666 \\\hline\end{array}$$ That operator is:

• A) The restrict operator
• B) The project operator
• C) The extended cross product operator
• D) A join operator

---

Definitions:

Dermis

The layer of skin beneath the epidermis, containing nerve endings, sweat and sebaceous glands, and blood and lymph vessels, providing structure and elasticity.

Stratum Basale

The deepest layer of the epidermis, consisting of stem cells capable of undergoing cell division to form new cells, replenishing the skin.

The Matrix

A science fiction media franchise about a dystopian future in which reality as perceived by humans is actually a simulated reality called "the Matrix," created by sentient machines to subdue the human population.

The Free Edge

The portion of the nail that extends beyond the fingertip, not attached to the underlying nail bed.