Consider Twittler, it is a social network platform where user sends tweets of 280 characters • Each tweet may have a number of hashtags. (a hashtag is a string starting with #) We record the time and location of each tweet. A tweet may include up to four media items (either a photo or a video) •A tweet may refer to a user • Tweet can be a quote another tweet • User can follow user or hashtags • To use Twitter, a user must register by his(her) email, phone number, and user name. Design an entity-relationship diagram

Consider Twittler, it is a social network platform where user sends tweets of 280 characters • Each tweet may have a number of hashtags. (a hashtag is a string starting with #) We record the time and location of each tweet. A tweet may include up to four media items (either a photo or a video) •A tweet may refer to a user • Tweet can be a quote another tweet • User can follow user or hashtags • To use Twitter, a user must register by his(her) email, phone number, and user name. Design an entity-relationship diagram

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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HTML is the language of web pages. Items start and end with tags. A table starts with and ends with . In a table, a row starts with and ends with . In a row, a column starts with and ends with . Given two integers for rows and columns, generate an appropriately sized html table. Place the character c in each table cell. If the input is 2 3, the output is: c c c c c c
JAVA PROGRAMMING Arrays are useful to process lists. A top-level domain (TLD) name is the last part of an Internet domain name like .com in example.com. A core generic top-level domain (core gTLD) is a TLD that is either .com, .net, .org, or .info. A restricted top-level domain is a TLD that is either .biz, .name, or .pro. A second-level domain is a single name that precedes a TLD as in apple in apple.com. The following program repeatedly prompts for a domain name, and indicates whether that domain name consists of a second-level domain followed by a core gTLD. Valid core gTLD's are stored in an array. For this program, a valid domain name must contain only one period, such as apple.com, but not support.apple.com. The program ends when the user presses just the Enter key in response to a prompt. 1-Run the program and enter domain names to validate. 2-Extend the program to also recognize restricted TLDs using an array, and statements to validate against that array. The program should…
I am developing a web page, but because the files that I have created for my page are in .HTML I cannot connect my web page with my database in phpMyAdmin, so I need help to pass the files from .HTML to .php ( without changing the structure of the pages) so that I can connect it with my php database. IF CAN, PLEASE SEND ME AN EMAIL bonifacioiyanga2019@hotmail.com SO THAT I CAN SEND THE FILES AND DISCUSS.
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The web page must display a button. When a user clicks on the button, a prompt should show up, asking the user to enter any number. Upon entering the number, an alert should then show up with a message such as: 'The 5th power of "x" (x being the user's entered number) is "y" (with y being the result). In other words, the 5th power of a user's random entered number must be computed. How is this coded? This is the actual instruction: 'Create an HTML document and link a JavaScript file to the document in the document header. Write a function getAndShow() in the JavaScript file that will use a prompt dialog to ask the user for any number. Use the number returned by the prompt to compute the fifth power of that number and display it in a message box with a suitable message.'. There's also mention of a getAndShow() function that has to be added to the js file. Lastly, the images in the original questions are guidelines on what the code must produce.
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