HAPPY INSURANCE

Observe the HAPPY INSURANCE DATABASE:
CLIENT AGENT

question 10

Multiple Choice

HAPPY INSURANCE

Observe the HAPPY INSURANCE DATABASE:
CLIENT
$$\begin{array} { l l c l } \text { ClientID } & \text { ClientName } & \text { CientAgent } & \text { ClientSpouseName } \\\text { C111 } & \text { Tom } & \text { A1 } & \text { Jenny } \\\text { C222 } & \text { Kain } & A 1 & \text { Bill } \\\text { C333 } & \text { Cole } & A 2 & \text { Amy } \\\text { C444 } & \text { Dorothy } & A 2 & \\\text { C555 } & \text { Anay } & A 3 & \text { Amy } \\\text { C666 } & \text { Tina } & A 3 & \text { Matt } \\\text { C777 } & \text { Christina } & A 4 & \text { Mike }\end{array}$$ AGENT
$$\begin{array} { l l l l l c } \text { AgentID } & \text { AgentName } & \text { AgentArea } & \text { AgentRating } & \text { AgentYearofHire } & \text { SupervisedBy } \\\text { A1 } & \text { Kate } & 1 & 101 & 1990 & \\\text { A2 } & \text { Amy } & 2 & 92 & 2009 & \text { Al } \\\text { A3 } & \text { Luke } & 3 & 100 & 1992 & \\\text { A4 } & \text { James } & 3 & 90 & 2010 & \text { A3 }\end{array}$$ AREA
$$\begin{array} { l l l } \text { ArealD } & \text { AreaName } & \text { AreaHQ } \\1 & \text { East } & \text { Boston } \\2 & \text { West } & \text { San Francisco } \\3 & \text { Central } & \text { Chicago }\end{array}$$

This database will be used for the following questions citing tables from the HAPPY INSURANCE database.
-If a DBMS enforces an UPDATE SET-TO-NULL option on the referential integrity constraint between CLIENT and AGENT in the HAPPY INSURANCE database,what will be the outcome after a User tries to change the AgentID value in the last record to A5?

• A)Value A4 appears once in column AgentID in AGENT,and value A4 appears once in column ClientAgent in table CLIENT
• B)Value A5 appears once in column AgentID in AGENT,and value A5 appears once in column ClientAgent in table CLIENT
• C)Value A5 appears once in column AgentID in AGENT,and value A5 does not appear in column ClientAgent in table CLIENT
• D)Value A5 does not appear in column AgentID in AGENT,and value A5 appears once in column ClientAgent in table CLIENT

---

Definitions:

Learning Fear

The process by which living beings acquire a fear response to a previously neutral stimulus through conditioning.

Shoelaces

Shoelaces are a commonly used tool for fastening shoes, utilized to adjust the shoe's tightness and fit according to the wearer's preference.

Pavlov's Laboratory

The research facility where Russian physiologist Ivan Pavlov conducted his pioneering work on classical conditioning in the early 20th century.

Conditioning

A method of altering behavior where an individual learns to link a wanted behavior with a stimulus that was previously not related.