Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Please draw the hashtable

• Start with an empty hash table of capacity 10 and load factor .75
• Double the table capacity during a resize operation.
• The hash function maps String keys to indexes using the first character base 26 mod table size.
• Example: "Wilson"
• Use quadratic probing to resolve collisions. Ex. h(n), h(n) + 1?, h(n) + 2², h(n) + 3² + .. (mod table
22 mod 10 = 2
size)
• Show the final table after adding the following in this order: "Schmitt", "Cernan", "Duke",
"Young", "Irwin", "Scott", "Mitchell", "Shepard", "Bean", "Conrad", "Aldrin", “Armstrong"
For your convenience here are character/number mappings:
А в с D E F G н I
JK L M
0 1
3
4 5 6 7 8
9
10
11
12
N o P QR ST U V
w x Y Z
13
14
15
16
17
18
19
20
21
22
23
24
25
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Transcribed Image Text:• Start with an empty hash table of capacity 10 and load factor .75 • Double the table capacity during a resize operation. • The hash function maps String keys to indexes using the first character base 26 mod table size. • Example: "Wilson" • Use quadratic probing to resolve collisions. Ex. h(n), h(n) + 1?, h(n) + 2², h(n) + 3² + .. (mod table 22 mod 10 = 2 size) • Show the final table after adding the following in this order: "Schmitt", "Cernan", "Duke", "Young", "Irwin", "Scott", "Mitchell", "Shepard", "Bean", "Conrad", "Aldrin", “Armstrong" For your convenience here are character/number mappings: А в с D E F G н I JK L M 0 1 3 4 5 6 7 8 9 10 11 12 N o P QR ST U V w x Y Z 13 14 15 16 17 18 19 20 21 22 23 24 25
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