supcity supstatus purchase price deliv_period SUPNR | 0..M PRODNR supname prod-po po-prod SUPPLIER prodname supaddress 1.1 SUPPLIES 0.N po-sup sup-po ON ORDER PRODUCT 0..N 0.N PO LINE PURCHASE prodtype ORDER 0..M prod-po po-prod available quantity PONR podate quantity

supcity supstatus purchase price deliv_period SUPNR | 0..M PRODNR supname prod-po po-prod SUPPLIER prodname supaddress 1.1 SUPPLIES 0.N po-sup sup-po ON ORDER PRODUCT 0..N 0.N PO LINE PURCHASE prodtype ORDER 0..M prod-po po-prod available quantity PONR podate quantity

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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a)Createa flow chartdiagram tomodel the online course registration described inthe case study belowCASE STUDYONLINE COURSE REGISTRATION SYSTEMThe User enters the surname and password and chooses if the user is a student or administrator. If entered details are valid, the user accounts become avaiable. f it is invaid an appropriate message is displayed to him/her. A student can search al the courses available to him and he chooses the best course he wants. The student can view course duration, facuty and department the course he may choose. When a student has successfully chosen a course, he can register to that course. Upon registration student details are stored in database.After registration to any course, the student may see the details of current course. He may wish to know details about fees and other information. The administrator also has the privilege to display details of the students and the corresponding course for which they have registered. The administrator has to perform…
Brief expalantion springboot Userservice: public User getUser() { Stringusername=SecurityContextHolder.getContext().getAuthentication().getName(); /* Get User from the DB. */ returnthis.userRepository.findByUsername(username) .orElseThrow(()->newUserNotFoundException(String.format("Username doesn't exist, %s",username))); } ================================================================================= User controller: @GetMapping("/get") publicUsergetUser(){ logger.debug("Getting User Data"); returnthis.userService.getUser(); }
I WANT THIS PROGRAM IN JAVA LANGUAGE OOP KINDLY USE GUI eShop Create/View/Edit ProfileAdmin account for notifications/viewable informationview itemscontact seller (chatbox)add to cartview cartcheckoutmake paymentsview purchase historyview product viewing historyreminder to checkoutGroup Members Click for more options
The delivery drones have a internal reporting and logging system thatrecords events and issues during flights. These logfiles contain the last 1000events/messages as well as their status codes.The Logfile FormatBy default, the logfiles are all called ‘logfile.txt’. Each logfile is exactly 1000 lineslong.Each entry in the file consists of 4 fields:1. a line number (starting at 0)2. a POSIX timestamp3. a message/event type4. an event descriptionEach field (line number, timestamp etc.) is separated by a space, except for thedescription which ends with a full stop.Log events come in three different types: NOTIFY, WARNING, and ERROR. Task 1: Display Because the logfiles are so big, we would only like to display a certain number oflines at a time. We prompt the user to choose start and end line numbers andprint all the lines from start to end (inclusive).The input constraints are as follows: 0 start end 999You can safely assume that the inputs will fall within that…
Create a Registration page: choose language as per the your convince • Registration Fields: 1) User Name - Input Text 2) Password - Input Password 3) Repeat Password - Input Password 4) First Name - Input Text 5) Last Name - Input Text 6) Address line 1 - Input Text 7) Address line 2 - Input Text 8) City - Input Text 9) State - Drop Down of Options 10) Zip Code - Input Text 11) Phone Number - Input Text 12) Email - Input Text 13) Gender - Radio buttons 14) Marital Status - Radio buttons 15) Date of Birth - Input Text, must have a calendar pop up (date picker) 16) Submit Button - Form submit button 17) Reset Button - Clears form fields to default settings (normally empty) Please type the code in Notepad++.
6 Cell Phone PackagesCell Solutions, a cell phone provider, sells the following packages:300 minutes per month: $45.00 per month800 minutes per month: $65.00 per month1500 minutes per month: $99.00 per monthThe provider sells the following phones (a 6 percent sales tax applies to the sale of a phone):Model 100: $29.95Model 110: $49.95Model 200: $99.95Customers may also select the following options:Voice mail: $5.00 per monthText messaging: $10.00 per monthWrite an application that displays a menu system. The menu system should allow the userto select one package, one phone, and any of the options desired. As the user selects itemsfrom the menu, the application should show the prices of the items selected.
Medical Unlimited Medical Unlimited (the brainchild of a group of young philanthropic medical professionals) is interested in setting up a mobile medical unit that provides free medical services for students. The mobile medical unit will require a patient record and scheduling application that will be used by the medical staff (doctors/nurses) and receptionists working there. The receptionists will use the system to capture new patient information when firsttime patients visit the doctor. Receptionists will also be responsible for scheduling all appointments. Nurses on the other hand will use the s ystem to keep track of the results of each visit including diagnosis, medications, prescription and treatment. Multiple medications may be prescribed during each visit. The nurses can also access the information to print out a history of patient visits. Th e doctors will primarily use the system to view patient history. The doctors may enter some patient treatment information and…
Medical Unlimited Medical Unlimited (the brainchild of a group of young philanthropic medical professionals) is interested in setting up a mobile medical unit that provides free medical services for students. The mobile medical unit will require a patient record and scheduling application that will be used by the medical staff (doctors/nurses) and receptionists working there. The receptionists will use the system to capture new patient information when firsttime patients visit the doctor. Receptionists will also be responsible for scheduling all appointments. Nurses on the other hand will use the s ystem to keep track of the results of each visit including diagnosis, medications, prescription and treatment. Multiple medications may be prescribed during each visit. The nurses can also access the information to print out a history of patient visits. Th e doctors will primarily use the system to view patient history. The doctors may enter some patient treatment information and…
omplete this javascript file according to the individual instructionsgiven in the comments. *** DO NOT CHANGE any of the code that you are not instructed to. */ ////////////////////////// NOTE: Use the API endpoints available at// https://jsonplaceholder.typicode.com/// to get the data required in these exercises.// HINT: Read the documented Resources and Routes.// Also the guide:// https://jsonplaceholder.typicode.com/guide//////////////////////// Create a function named "getUser".// This function needs to accept a "userID"// parameter.// Use Fetch with Async/Await to request// the data for the requested user.// The function should return JSON data.
Change the node server code by adding some instructions: const express = require('express'); const dotenv = require('dotenv'); dotenv.config(); const app = express(); app.get('/dotted', (req, res) => { const { word1, word2 } = req.query; const dots = '.'.repeat(30 - word1.length - word2.length); const result = `${word1}${dots}${word2}`; res.status(200).contentType('text/html').send(result); }); app.get("/fizzBuzz", (req, res) => { const start = parseInt(req.query.start); const end = parseInt(req.query.end); let response = ""; for (let i = start; i ${response}`); }); app.get('/gradeStats', (req, res) => { const { grades } = req.query; const min = Math.min(...grades); const max = Math.max(...grades); const avg = (grades.reduce((a, b) => a + b) / grades.length).toFixed(2); const result = JSON.stringify({ average: avg, minimum: min, maximum: max }); res.status(200).contentType('application/json').send(result); }); app.get("/rectangle", (req,…
this node js app .i want to submit it to heroku ,but not working . i have tryed some fix to it ,but after i do many changes on npm ,its not working on my pc. i cant understand why ， can someone see my code and help fix it ? npm ERR! missing script: start npm ERR! A complete log of this run can be found in:npm ERR! $ node app.jsinternal/modules/cjs/loader.js:905 throw err; ^ Error: Cannot find module 'express-handlebars'Require stack: -------------package.json{ "name": "tokl", "version": "1.0.0", "description": "", "main": "app.js", "dependencies": { "body-parser": "^1.19.0", "client-sessions": "^0.8.0", "cookie-parser": "^1.4.5", "express": "^4.17.1", "hbs": "^4.1.2", "webpack": "^5.60.0", "webpack-cli": "^4.9.1", "webpack-dev-server": "^4.4.0" }, "devDependencies": {}, "scripts": { "test": "echo \"Error: no test specified\" && exit 1", "start": "node app.js" }, "repository": { "type": "git", "url": "tokl.git" },…
How to remove the item from the cart if the quantity is 0? I have included my code below that I am confused about how to implement this on. <?php session_start(); $page = 'cart'; //DATABASE CONNECTION INFO include_once ('includes/database.php'); include_once ('includes/header.php'); if(!isset($_COOKIE['loggedIn'])) { header("location: login.php"); } if (isset($_POST['update'])) { for ($x = 0; $x < sizeof($_SESSION['quant']); $x++) { $quant_id = 'quant_'.$x; if($_POST[$quant_id] > 0) { $_SESSION['quant'][$x] = $_POST[$quant_id]; } elseif($_POST[$quant_id] == 0) { //HOW DO I REMOVE THE ITEM FROM THE CART IF QUANTITY IS = 0? } else { echo "Quantity must be greater than 0 to purchase."; } } } if(isset($_POST['remove'])) { //HOW DO I REMOVE THE ITEM FROM THE CART IF THE "REMOVE" BUTTON IS CLICKED? } if(isset($_POST['submit_order'])) {…