Answered: The unit of storage that can store one…

The unit of storage that can store one are more records in a hash file organization are a. Buckets b. Disk pages c. Blocks d. Nodes

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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1211] - Read-Only - Word O Search References Mailings Review View Help 20 - Hash index entries are assigned to. a) Values b) Clusters c) Buckets d) Blocks 21 - what are the index of an efficient bitmaps index? a) Each bucket has initially one block. Any additional blocks are allocated and linked to an initial block b) The WHERE clause may specify any values in upper ways. The column used in a WHERE clause may contain mixed upper- and lower-case characters. c) The database can quickly determine the block containing a table row from the index row mumber. Any indexed column relatively few distinct values. d) Indexes change only when primary key values are updated. physical indexes change whenever a row moves to a new block. 22 - A column contains grades from 0 to 10, but uh where clause specifies values from 0 to 100. A. index can be used to modify the column values and process the queries. a) Multi - level b) logical c) single - level d) function 23 - In logical index, pointers to table…
What collection-type data type is most useful with data values that are heterogeneous and may be processed differently? record data types arrays associative arrays hashes
1. Given that F is a direct file with n = 2000 records and that the records are stored in orderof their keys. Determine how any record reads it would take to locate a particular record using:a. Sequential search (average case)b. Binary search (worst case)c. (open) hashing with 200 buckets (average case)d. (open) hashing with 400 buckets (average case) 2. Write the declarations to create a data type called: DICTIONARY that represents an openhashing scheme with 20 buckets
In this question don’t change code, just in python postgreSQL but solve the question and follow the instructions
Which of the following is used in hash tables to determine the index of any input record?a) hash functionb) hash linked listc) hash treed) hash chaining
Which of these describes how an item in a doubly linked data structure is accessed? a.immediately accessed via a base address and offset b.accessed by starting at one end and following the links until the item is reached c.immediately accessed via an index d.accessed via a binary search
C++ Complete the program that will allow the user to enter data on 10 Halloween costumes. The program will create Costume objects and then store the Costume objects in a Hash Table. The Costume ID will be the key and a pointer to the Costume object will be the value. You are given Lab7.cpp, HashEntry.h, and Costume.h and you should not have to make any changes to these files at all. You will need to write HashTable.h, which implements the HashTable class. This should NOT be a template class. Your HashTable class should resolve collisions by linear probing and should use the HashEntry class for the linkedlist nodes. Because we’re using probing, there is no removal function. This is okay for this application, since we want to keep a record of costumes that are no longer being kept in stock. ---GIVEN--- Lab.cpp #include <iostream> #include "HashTable.h" #include "Costume.h" using namespace std; int main() { int size; int key; Costume *newCostume; string name; float price;…
Build an application for a car rental company. It should offer the following features:• Maintain a customer database in a file:o Register / add new customers. Customer information should include▪ Customer ID number▪ Name▪ Phone numbero Search customer database by:▪ Customer ID number▪ Name▪ Phone numberAnd print out the matching records NOTE ; i need the answer to be by switch
What exactly does it mean when something is deleted using the delete operator?
def delete task (..., ...): I param: task_collection (list) holds all tasks; param: an integer ID indexes each task (stored as a dictionary) (str) - a string that is supposed to represent an integer ID that indexes the task in the list returns: 0 if the collection is empty. -1 - if the provided parameter is not a string or if it is not a string that contains a valid integer >=0 representing the task's position on the list. Otherwise, returns the item (dict) that was removed from the provided collection. 11 11 11
Without using the built in java hash table Write a Java program to get input from the keyboard to enter an integer.Write a hash function to hash the integer.Store the integer in a DataItem object.Create a hash table to store the DataItem in the hash table at the hashed location.Write a function to search a hash function for an integer value and display it from the DataItemobject at the hashed location
7a) A file organization where files are not stored in any particular order is considered a:A) hashed file organization.B) hash key.C) multi-indexed file organization.D) heap file organization. 7b) An index on columns from two or more tables that come from the same domain of values is called a:A) bitmap index.B) multivalued index.C) join index.D) transaction index. 7c) A(n) ________ is a routine that converts a primary key value into a record address.A) record index calculatorB) index pointer programC) hashing algorithmD) pointing algorithm 7d) A method that speeds query processing by running a query at the same time against several partitions of a table using multiprocessors is called:A) multiple partition queries.B) perpendicular query processing.C) parallel query processing.D) query optimization. 7e) A command used in Oracle to display how the query optimizer intends to access indexes, use parallel servers, and join tables to prepare query results is the:A) explain plan.B) show…