Question

How is a logical database schema different from a physical database schema?

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Engineering
Computer Engineering

Other

Related Computer Engineering Q&A

Find answers to questions asked by students like you.

Q: Answer for 7 & 8 if you please Thank you for your help

A: 7) HTM5 : HTML is a standard markup language for web pages on the internet. The HTML stands for hyp...

Q: What would you say to a vendor who tells you that his system runs 50% of the SPEC benchmark kernel p...

A: Performance of the system: System performance is considered as one of main factor of a processor. I...

Q: What’s the difference between a socket and a port?

A: A socket has three things: IP address Transport protocol Port number A socket means a single conne...

Q: What is the difference between an array and an aggregate type?

A: In the C program , Aggregate has two different kinds one will be arrays and another will be structur...

Q: Suppose a disk drive has the following characteristics:1. Six surfaces2. 16,383 tracks per surface3....

A: Given: Given that the disk drive has the following features: Number of surfaces = 6 Tracks per surfa...

Q: The Durban July is an annual horse race that has been presented every year since 1897. Write a C/C++...

A: Program: //included header file #include<iostream> #include<string> #include <cstring...

Q: Which of the following for loop headers will cause the body of the loop to be executed 100 times?   ...

A: Explanation: Based on the initial value of “i”, the condition is determined. Usually, the initial v...

Q: Give a trace of the operation of protocol rdt3.0 when data packets and acknowledgment packets are ga...

A: A protocol is an arrangement of decides that permit at least two substances of an interchanges frame...

Q: Define arrays versus pointers.

A: An array can be described in C Programming as a number of memory locations that can each store The s...

Q: Suppose a disk drive has the following characteristics:1. Five surfaces2. 1,024 tracks per surface3....

A: Given: Given that the disk drive has the following features: Number of surfaces = 4 Tracks per surfa...

Q: What is short stroking, and how does it affect the relative cost per gigabyte of SSDs?

A: Short stroking Short stroking is used for formatting a disk drive. Hence the data can be written to...

Q: Please help as soon as possible!

A: The program is written in python that accomplishes the points mentioned.

Q: Define a new class named UnweightedGraphFindCycle thatextends UnweightedGraph with a new method for ...

A: Program: Exercise.java: //import the required packages import java.util.List; import java.util.Array...

Q: Draw pictures of the six principal interconnection network topologies.

A: A logical network topology is a reasonable portrayal of how gadgets work at specific layers of refle...

Q: How does absolute code differ from relocatable code?

A: Difference between absolute code and relocatable code: Absolute code Relocatable code Abso...

Q: A file has the following permissions: r-- --x-w-. The command chmod 143 would havethe same effect as...

A: Permissions: In Linux operating system, the permissions are represented with the help of notions of...

Q: Ques 1) (a) What applications or services will be delivered from edge computing platform? How addres...

A: Edge computing is a circulated processing worldview that brings calculation and information stockpil...

Q: please answer (a) and (b) completely. Thanks a lot Consider a 10Mbps Ethernet network consisting of ...

A: Ethernet is a convention inserted in coding and equipment gadgets. It is used for building a local a...

Q: A system implements a paged virtual address space for each process using a one-level page table. The...

A: The maximum number of entries in a page table is computed as follows, Maximum number of entries in a...

Q: Which option to the rpm command can be used to remove a package from the system?a. –rb. –ec. –ud. –U

A: RPM Package Manager (RPM) is a free and open-source package management framework It alludes to .rpm ...

Q: What's the problem with the following code snippet? See picture for details. Thank you

A: As the code suggests there is use of private data members which is difficult and will not valid. In...

Q: Your organization has created a data-sharing partnership with another business. Management of both o...

A: Firewalls are devices or programs that control the flow of network traffic between networks or hosts...

Q: Which of the following SELECT statements will select the ProdNum field from the Products table, and ...

A: Explanation: The “SELECT” statement is used to retrieve the data from the table or database. Here, ...

Q: using python code determine the coeffcients of polynomial y=a0+a1x+a2x2+a3x3 that passes through the...

A: Import module numpy for working with the arrays. Define function leftMatrix with arr as the paramete...

Q: Please do all the true or false question. Complete fully. Thanks in advance

A: answer explanations: 1. yes, an abstract class can have implemented method. 2. No, it is not necessa...

Q: What do you feel are the limitations of a computer that has no operating system? How would a user lo...

A: In today's world the computer without an operating system is too difficult and the execution of the ...

Q: The ASCII code for the letter A is 1000001, and the ASCIIcode for the letter a is 1100001. Given tha...

A: Introduction of ASCII Code ASCII(American Standard Code for Information Interchange) is a 7-bit code...

Q: A RISC processor has 152 total registers, with 12 designated as global registers. The 10 register wi...

A: RISC means Reduced Instruction Set Computer. This processor has 'guidance sets' that are straightfor...

Q: Assess the value adding characteristics of using the Internet for e‐business.

A:  E-companies use the internet to entry a virtually limitless deliver of cash and clients or customer...

Q: Write a program that converts a time from 24-hour notation to 12-hour notation. To make the solution...

A: Objective: This program changes a given time from a 24-hour format to a 12-hour format after reading...

Q: What are the potential problems (perhaps more than one) with the following assembly language code fr...

A: Explanation of the given code: The code represents the following, The accumulator is loaded with th...

Q: using python code determine the coeffcients of polynomial y=a0+a1x+a2x2+a3x3 that passes through the...

A: The code is written in python to find the coefficients We can take the first point (0,10) then the e...

Q: A user typed in the command pwd and saw the output: /home/jim/sales/pending. Howcould that user navi...

A: "cd" command: Linux comes with huge number of commands that specify some unique functionality. "cd...

Q: Create a C++ program to convert the distance (in feet) to inches, yards, and miles. Display the conv...

A: The c++ program will convert to all the distances such as meters,inches,feet,yard,kilometers. The pr...

Q: Vivobarefoot is an innovative shoe company that recently undertook a major review of its technology ...

A: Question: What are some of the competitive advantages Vivobarefoot gained through its infrastructure...

Q: What types of general issues that effect software

A: General issues that affect the type of software: The first issue that affects the type of software ...

Q: How many 16-byte cache blocks are needed to store all 32-bit matrix elements being referenced?

A: The cache holds information bound for RAM, yet it is quicker than RAM. For effortlessness, we accept...

Q: Suppose a RISC machine uses overlapping register windows for passing parameters between procedures. ...

A: RISC represents Reduced Instruction Set Computer. It is a sort of chip engineering that uses a littl...

Q: Select all of the registers listed below that are changed during DECODE INSTRUCTION step of an LC-3 ...

A: LC3 is an assembly language with simple instruction sets but can be used to write complex programs.