Identify one reason indexes are useful

Assignment Help Operating System
Reference no: EM13707320

Question: Identify one reason indexes are useful. Explain what you would have to do if indexes weren't available in order to achieve the reason you initially stated.

Part 1: Select one of the following Vendor's Relational Database Management SystemRDMS: Oracle (Oracle Database Server), Microsoft, IBM (DB2), Sybase, Any Open Source RDMS (MySQL, Firebird, PostgreSQL, Ingres), or SAP (MaxDB). Then, briefly review how the query optimizer generates and chooses a query plan.

Describe what you would have to do if indexes weren't available in order to get the reason you initially stated and how the query optimizer generates and selects a query plan.

Reference no: EM13707320

Questions Cloud

Sum of the elements of the arithmetic progression : An arithmetic progression is a sequence of numbers in which the distance (or difference) between any two successive numbers if the same.
Search a sorted array of floating point numbers : You need to write a program which uses binary search to search a sorted array of floating point numbers - Create an array of doubles, using the following statement. Notice that the array is sorted.
Prepare a assembly program to initialize the led outputs : Write a main.asm file in PSoC designer. Make sure to have the subsequent in place - Initialize the LED outputs to 0's and Set the corresponding bit in INT_MSK0 to 1.
Prepare a function that generates a polynomial : Write a function genPoly(n) that generates a polynomial of length n (degree n-1), all of whose coefficients are 1.0.
Identify one reason indexes are useful : Describe what you would have to do if indexes weren't available in order to get the reason you initially stated and how the query optimizer generates and selects a query plan.
How long should a system be idle to benefit from hibernating : If reading or writing a cache-line of size 64 bytes to Flash requires 2.56 ?J and DRAM requires 0.5 nJ, and if idle power consumption for DRAM is 1.6 W (for 8 GB), how long should a system be idle to benefit from hibernating? Suppose a main memory..
Find and print the largest number in the array : Write a C program that declares an (integer) array of size 10, prompts the user to enter 10 integers and stores them in the array. The program should then
Reads numbers from input and prints them in reverse order : Write a C program that reads ten numbers from input and prints them in reverse order. We assume that the data consists of integers. The program should conform to the following format:
Find the shortest sequence of mips instructions : Find the shortest sequence of MIPS instructions that extracts bits 16 down to 11 from register $t0 and uses the value of this field to replace bits 31 down to 26 in register $t1 without changing the other 26 bits of register $t1.

Reviews

Write a Review

Operating System Questions & Answers

  Explain the concept of locality of reference

1. Explain the concept of locality of reference and state its importance to memory systems.

  Role of a database management system

Discuss the role of a database management system (DBMS) and what are its benefits and how does a relational database management system differ from a flat document?

  Explain decision variables in relation to linear programming

Explain the following terms in relation to linear programming problems- (1) decision variables (2) objective function

  Design of an operating system performance

Design of an Operating System Performance Evaluation and Analysis - What is the significance of the topic as related to the field of computer science and industry

  Explain the elements and capabilities of a fault

Discuss briefly the network management software components and describe the elements and capabilities of a fault, configuration, accountingn and security server.

  Securing standard telecommunications line vs voip connection

Determine the difficulty(s) of securing a standard telecommunications line vs. securing a VOIP connection?

  What are the four types of business ownership describe each

what are the four types of business ownership? describe each of them. your response should be at least 200 words in

  How many page faults would occur under pure demand paging

How many page faults would occur under pure demand paging (all frames are initially empty), assuming four frames are available, under FIFO, LRU.

  Discussion on computer peripherals

Visit Web sites for corporations that sell computer peripherals. Compile a list that contains as several types of input and output devices as you can locate on these Web sites.

  Explain the role of antennas in transmission

Explain the role of antennas in transmission of radio waves. Determine what type of antenna is typically used in a wireless LAN?

  Operating system maps user-level threads to kernel

Suppose an operating system maps user-level threads to the kernel using the many-to-many model and the mapping is done through LWPs.

  Identifying wireless network architectures

Some of the local hospital's administrators are questioning privacy of patients' data with wireless transmission. Discuss and determine the merits of their concerns.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd