A hash function takes an item and makes it into a number. A hash code is the number computed by a hash function modulo the table size. A hash table is an array (or array of linked lists) that you put values into for storage. An item's location in this table is based on the hash o The load on a table is the number of values in the table divided by the number of free slots in the table. Java's hash contract states that if two items are equal they will have the same hash code, and if two items are not equal they will have diff
A hash function takes an item and makes it into a number. A hash code is the number computed by a hash function modulo the table size. A hash table is an array (or array of linked lists) that you put values into for storage. An item's location in this table is based on the hash o The load on a table is the number of values in the table divided by the number of free slots in the table. Java's hash contract states that if two items are equal they will have the same hash code, and if two items are not equal they will have diff
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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
Transcribed Image Text:Based on the lecture, select all true statements.
Answers:
A hash function takes an item and makes it into a number.
A hash code is the number computed by a hash function modulo the table size.
A hash table is an array (or array of linked lists) that you put values into for storage. An item's location in this table is based on the hash code.
The load on a table is the number of values in the table divided by the number of free slots in the table.
Java's hash contract states that if two items are equal they will have the same hash code, and if two items are not equal they will have different hash codes.
You can build sets out of maps and maps out of sets.
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