Need Help Question 3 (4 points) HAPPY INSURANCE Observe the HAPPY INSURANCE DATA

Question

Need Help

Question 3 (4 points) HAPPY INSURANCE Observe the HAPPY INSURANCE DATABASE: CLIENT ClientiD ClientName ClientAgent ClientSpouseName C111 Tom A1 Jenny C222 Karin A1 Bilf C333 Cole A2 Amy C444 Dorothy A2 C555 Andy A3 Amy C666 Tina A3 Matt C777 Christina A4 Mike AGENT AgentiD AgentName AgentArea AgentRating AgentYearOfHire SupervisedBy A1 Kate 1 101 1990 A2 Amy 2 92 2009 A1 A3 Luke 3 100 1992 A4 James 3 90 2010 A3 AREA ArealD AreaNameAreaHQ 1 East Boston 2 West San Francisco 3 Central Chicago This database will be used for the following question citing tables from the HAPPY INSURANCE database. If a DBMS enforces a DELETE RESTRICT 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 delete the last record (C777, Christina, A4, Mike)from CLIENT? CLIENT will have 7 records AGENT will have 4 records CLIENT will have 6 records AGENT will have 3 records CLIENT will have 7 records AGENT will have 3 records CLIENT will have 6 records AGENT will have 4 records

Explanation / Answer

Hi,

The table CLIENT defines a foreign key constraint on the column AGENTID that references the column AGENTID in the AGENT table. The ON DELETE CASCADE clauses is used to ensure that changes made to AGENT table are automatically propagated to the CLIENT table.

When a record is deleted from the AGENT table, all the related record on the CLIENT gets deleted automatically.

In the above secnario, record is deleted from the CLIENT, So which will not mak any changes on the AGENT.Hence the expected result would be

CLIENT will have 6 records

AGENT will have 4 records

Related Questions

Navigate

• Browse (All)
• Browse N
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.