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## Introduction ## There are many ways to describe relationships between Entities in Room, one of which is to embed an entity inside of another. When embedding an Entity, the columns of the embedded Entity are extracted as member columns of the enclosing entity. In this tutorial, we will learn … | |
So far, we have gotten lots of innovative social media models. I am not too sure if this has already been tried, but I want to innovate on ownership model. Basically, I envision a Reddit that is owned by its mods and users. Maybe a hybrid FB and Reddit. It … | |
Hi DW. I'm creating a chat system which will alow guests to send DMs to the operator and the operator can reply to it. I'm using MYSQL as my database, fingerprint2js for identifying the user since user has not yet logged in or registered but want to first communicate with … | |
![ff.png](https://static.daniweb.com/attachments/4/5d673eb8c69ed2fe1797b2e1760d1c66.png) username = ["John", "Peter", "David"] password = ["abc123", "123abc", "a1b2c3"] Passwords and username are paired by index. (i.e., John’s password is abc123, etc.) Then make the user input a username and password, then check if the input matches the pair of username and password. If account exists, display ‘Welcome, … Programming | |
hii how can i make self join and sum data in other table by username i have table like this members (id, username, referral) ref_bonus (id, username, bonus) members id | username | referral ---------------------- 1 id1 id2 2 id2 null 3 id3 id2 ref_bonus id | username | bonus … | |
Hello, I am new in C programming, I am writing a function to evaluate a prefix arithmetic expression. I know my code works well but it seems the message floating exception (core dumped) is because if my (preval / 0) the program is not going to work. However, I would … | |
I have two large files that I want to make available for users to download. When trying to download from my web host, the download never starts and I get a "504 Gateway Timeout". How would I revise my code to download from a file sharing site? I tried the … | |
The web application will have a database that consists of millions (over 20mil ... maybe 100mil or more) of hosts (ipv4,ipv6 and domains) and additional data to each host like blacklist, uptime, history, geo data (country, region, city, isp). I could, of course, use other RMDBS system like MySQL, Oracle, … | |
I know this has a simple answer that I should know, but for the life of me, can't remember. I have the following update statement in my code: $stmt = $pdo->prepare("UPDATE `files` SET `filename` = ?, `md5` = ?, `filesize` = ?,`logtime` = now() WHERE `id` = ?"); $stmt->execute (array($isoname, … | |
I'm new to this site and still fairlu new to PHP so not sure if this is were I need to place my question but here goes. I am currently trying to create a filter for my table using PHP. The filter options are already in my database; e.g I … | |
I'm using the following code for users to download files from my website. It works fine for files under 50MB, but fails immediately for larger files. Can someone explain why this is happening and how to fix it? Some of the downloadable files are over 800MB, so I need this … | |
i have made a program in school that chooses a random number and you need to guess it. you put in a number and it says higher or lower. the only problem is that i can't set RAND_MAX and its a 4 or 5 diget number (havent figured it out … | |
`Here is my HTML Code : <html> <head> <title>Welcome</title> </head> <body> <form enctype="multipart/form-data" action="upload.php" method="POST"> <input type="hidden" name="MAX_FILE_SIZE" value="100000" /> Choose a file to upload: <input name="uploadedfile_1" type="file" /><br /> Choose a file to upload: <input name="uploadedfile_2" type="file" /><br /> <input type="submit" value="Upload Files" /> </form> </body> </html> And Below … | |
how to barcode scanner in xamarin.form and connect sql server DataBase | |
Hi DW. I have code: <div class="lv-item media"> <div class="lv-avatar bgm-purple pull-left">u</div> <div class="media-body"> <div class="lv-title">dynamically_generated_value</div><!-- I want to get this value --> <div class="lv-small">Sample text</div> </div> </div> I use the following code to activate the selected list. NB the above is also dynamically generated for simplicity let say we … | |
| Hello, I am trying to count the number of characters in a string $a0 that return a 1 when passed to the function, otherwise return 0. Heres what I did: I dont have the correct answer __ output format must be 3, I have 11 .text .globl __start __start: # … |
hi All i am trying to make a set of pages that are adaptable to different websites, the text is generally the same for each site, but i need to insert names and other text to the site on different pages, i would like to do that by having a … | |
Hello everyone! I working on a social network alike page whare I want to implement a messaging system. I can do all that and I have it working. What I want is, when I get two or more messages from someone. I only want to display the lates message from … | |
| Hello, I wrote this c program that will rearrange the numbers in an array such that all the even numbers come first and that will also calculate the sum. However, when I tested it on mipsmark software ( for correcting assembly language programs) I have a test fails. Here's what … |
I don't understand why this update script isn't working. It is supposed to get the names of files in the download folder and update the files table in the database. It is running through the code without exiting when it fails to update but still displays "Update Successful". The downloads … | |
I am using colab and below is the code import pandas as pd import numpy as np import os import csv data = pd.read_file(r'C:\Users\sd3394\Test\CAN_all.csv') data.head() Programming python | |
Hello all, We have just launched a startup. Now, we are looking for a simple web-based relational database system where we can easily add tables and connect them to one another through foreign keys. For example, we would want to create a suppliers database in which we could perform a … | |
$html = 'Hello there this is image 1 <img src="http://www.example.com/XXX1.jpg" width="653" height="340" alt="xxx" title="xxx"> !! And Now you can see image number 2 <img src="http://www.example.com/XXX2.jpg" width="653" height="340" alt="xxx" title="xxx"> yep.'; $dom = new DOMDocument; $dom->loadHTML($html); $imgs = $dom->getElementsByTagName('img'); $imgURLs = []; foreach ($imgs as $img) { if (!$img->hasAttribute('src')) { continue; … | |
Hello, my name is Nicholas, and I'm the owner of a taxi service in Miami. I recently started a cab service with the support of a few friends. This firm has taken a lot of time and work to build. So far, we haven't been able to uncover anything that … | |
Suppose you have a php script where a user is prompted to enter a number. You then do something with that number ... you increment it, perform some other math calculation on it, search the database for records with the ID # the user passed in as a query string, … | |
## Introduction ## If your Android Application uses Room, then you might have wondered how to prepopulate a Room database. In this tutorial, we will learn how to prepopulate a Room database. ## Goals ## At the end of the tutorial, you would have learned: 1. How to prepopulate a … | |
## Introduction ## When working with Room, there might come a situation during bulk CRUD operations that it would be useful to add a Foreign Key to one of our tables. This provides two main benefits: cascading delete (*must be configured manually*) and enforcing data integrity on linked entities. In … | |
## Introduction ## When working with music files, you might have wondered how to load display art from Audio files. In this tutorial, we will learn how to load thumbnails for audio files. ## Goals ## At the end of the tutorial, you would have learned: 1. How to load … | |
So i have multiple web pages containing multiple episodes, what I'm trying to implement is a search box in the nav bar which will bring up the episode/category your looking for, nothing too over complicated. If anyone would be willing to point me in the right direction that would be … | |
hi everyone...I need help on solving this question... Create a SavingAccount class. Use a static data member to contain the annualInterestRate for each of the saver. Each member of the class contains a private data member savingsBalance indicating the amount the saver currently has on deposit. Provide a calculateMonthlyInterest member … |
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