(a) Write the insert SQL to populate the Zoom, BB, and the QR tables with the values given below. For each table, use only one insert to complete the insert task. The Duration column is initially empty. (b) Can you insert the ZOOM table first? Provide a reason according to the relational database theory if it is not possible.

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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4. This question continues from Q3.

(a) Write the insert SQL to populate the Zoom, BB, and the QR tables with the values given below. For each table, use only one insert to complete the insert task. The Duration column is initially empty.

(b) Can you insert the ZOOM table first? Provide a reason according to the relational database theory if it is not possible.

(c) Write a Delete SQL to remove student ‘M M’ from the BB table. If it is not possible to remove the row, provide a reason according to the relational database theory. You must not use SID in the SQL because only the name is given.

(d) Write an Update DML that will compute and update the duration in minutesin the Zoom table. Show the updated table and the DML.

BB
QR
Table Name and Data Types
SID
FName
LName
QID
FName
LName
DateTime_IN
Sid4
Mode
ZOOM
ZID
FName
LName
DateTime_IN
DateTime_OUT
Duration
INTEGER
TEXT
TEXT
INTEGER
TEXT
TEXT
TEXT
INTEGER
TEXT
INTEGER
TEXT
TEXT
TEXT
TEXT
INTEGER
Primary
Key
FName,
LName
QID
ZID
Foreign Key
None
FName,
LName
FName,
LName
Transcribed Image Text:BB QR Table Name and Data Types SID FName LName QID FName LName DateTime_IN Sid4 Mode ZOOM ZID FName LName DateTime_IN DateTime_OUT Duration INTEGER TEXT TEXT INTEGER TEXT TEXT TEXT INTEGER TEXT INTEGER TEXT TEXT TEXT TEXT INTEGER Primary Key FName, LName QID ZID Foreign Key None FName, LName FName, LName
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