Database System Concepts
7th Edition
ISBN: 9789332901384
Author: Henry F. Korth & S. Sudarshan Abraham Silberschatz
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Expert Solution & Answer
Chapter 3, Problem 21E
Explanation of Solution
a.
Query:
select memb_no, name from member natural join borrowed where isbn in (select isbn from book where publisher=’McGraw-Hill’);
Explanation:
Explanation of Solution
b.
Query:
Select memb_no, name from member m where not exists
(select isbn from book where publisher=’McGraw-Hill’ except (select isbn from member natural join borrowed where m.memb_no=memb_no));
Explanation:
The above query is get the “memb_n...
Explanation of Solution
c.
Query:
Select memb_no, name from member natural join borrowed natural join book group by memb_no, name, publisher having count (isbn)>5...
Explanation of Solution
d.
Query:
select sum(num_of_books)/ count(memb_no) from (select memb_no, (select count(*) from borrowed where member.memdber_no=borrowed...
Explanation of Solution
e.
Query:
create table participated (report_number char(20) primary key, license char(20) references car, driver_id char(20) references driver, damage_amount dec(6,2) )
Explanation:
The above query is used creat...
Expert Solution & Answer
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1. Complete the routing table for R2 as per the table shown below when implementing RIP routing
Protocol?
(14 marks)
195.2.4.0
130.10.0.0
195.2.4.1
m1
130.10.0.2
mo R2
R3
130.10.0.1
195.2.5.1
195.2.5.0
195.2.5.2
195.2.6.1
195.2.6.0
m2
130.11.0.0
130.11.0.2
205.5.5.0
205.5.5.1
R4
130.11.0.1
205.5.6.1
205.5.6.0
Analyze the charts and introduce each charts by describing each. Identify the patterns in the given data. And determine how are the data points are related.
Refer to the raw data (table):
3A) Generate a hash table for the following values: 11, 9, 6, 28, 19, 46, 34, 14. Assume the table size is
9 and the primary hash function is h(k) = k % 9.
i) Hash table using quadratic probing
ii) Hash table with a secondary hash function of h2(k) = 7- (k%7)
3B) Demonstrate with a suitable example, any three possible ways to remove the keys and yet
maintaining the properties of a B-Tree.
3C) Differentiate between Greedy and Dynamic Programming.
Chapter 3 Solutions
Database System Concepts
Ch. 3 - Prob. 1PECh. 3 - Prob. 2PECh. 3 - Prob. 3PECh. 3 -
Suppose that we have a relation marks(ID, score)...Ch. 3 - Suppose that we have a relation marks(ID, score)...Ch. 3 -
The SQL like operator is case sensitive (in most...Ch. 3 - Prob. 7PECh. 3 - Prob. 8PECh. 3 - Prob. 9PECh. 3 - Prob. 10PE
Ch. 3 - Prob. 11ECh. 3 - Prob. 12ECh. 3 - Prob. 13ECh. 3 -
Consider the insurance database of Figure 3.17,...Ch. 3 - Prob. 15ECh. 3 - Prob. 16ECh. 3 - Prob. 17ECh. 3 - Prob. 18ECh. 3 -
List two reasons why null values might be...Ch. 3 - Prob. 20ECh. 3 - Prob. 21ECh. 3 - Prob. 22ECh. 3 - Prob. 23ECh. 3 - Prob. 24ECh. 3 - Prob. 25ECh. 3 - Prob. 26ECh. 3 - Using the university schema, write an SQL query to...Ch. 3 - Prob. 28ECh. 3 - Prob. 29ECh. 3 - Prob. 30ECh. 3 - Prob. 31ECh. 3 - Prob. 32ECh. 3 - Prob. 33ECh. 3 - Prob. 34ECh. 3 - Prob. 35E
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