mysql

[Solved] How to configure and use MySQL with Django? [closed]

by

You can easily install xampp first from https://www.apachefriends.org/download.html (Follow these steps for xampp installation.) Then follow the instructions as: Install and run xampp from http://www.unixmen.com/install-xampp-stack-ubuntu-14-04/, then start Apache Web Server and MySQL Database from the GUI. You can configure your web server as you want but by default web server is at http://localhost:80 and database … Read more

[Solved] mysql_num_rows() expects parameter 1 to be resource, boolean given in C:\wamp\www [closed]

by

$s=mysql_query(“select semester from faculty_advisor where emp_id = ‘macs410’ “); echo $s; $subject=mysql_query(“select * from subject_list where semester=$s”); Should be $s=mysql_query(“select semester from faculty_advisor where emp_id = ‘macs410′ “); $row = mysql_fetch_assoc($s); $subject=mysql_query(“select * from subject_list where semester=””.$row[“semester’].”‘”); 0 solved mysql_num_rows() expects parameter 1 to be resource, boolean given in C:\wamp\www [closed]

[Solved] How to make HTML interact with a database? [closed]

by

You can’t make HTML directly interacting with database. You should create server-side application, which answer queries generated by HTML forms, JS queries, etc. I am PHP developer, I like this language, so I recommend you using it in your solution. You can read about connecting PHP to MySQL database here: http://www.w3schools.com/php/php_mysql_connect.asp There you have basic … Read more

[Solved] How to edit my code to save to mySQL from the beginning of XML?

by

This should work for you: <?php //Xml stuff $xml = simplexml_load_file(“file.xml”); //Database stuff $hostname = “localhost”; $username = “root”; $password = “”; try { //DB Connection $dbh = new PDO(“mysql:host=$hostname;dbname=dbname”, $username, $password); $dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); echo “Connected to Database<br/>”; foreach($xml->products->product as $data) { $sql = “INSERT INTO XML_FEED (shop, product_id, product_name, product_link, product_image, product_category, product_price_with_vat) VALUES … Read more

[Solved] First time to query 3 mysql tables [closed]

by

You have to use 2 joins to link these 3 tables. INNER JOIN means, that only those tuples are listed, for which an correct tuple exists in every table. Students without subjects or wrong subject_ids will not be listed. Keep in mind, that an student, which visits X subjects will also listed X times. SELECT … Read more

[Solved] How can show unlimited parent-child & sub-child tree data in laravel

by

you need to fetch all the products in one query and then process them to build the tree. You cant eager load it the traditional way. Original solution from Formatink public function products($projectId) { $products= Product::where(‘project_id’, $projectId)->get(); $products_by_id = collect(); foreach ($products as $product) { $products_by_id->put($product->id, $product); } foreach ($products as $key => $product) { … Read more

[Solved] how to make a while loop in nodejs to be a series

by

I (very quickly, so it probably has errors) rewrote this using async.forEachOfSeries to iterate over your attachments. I used async.forEachOf for the database writes as I don’t see a need for them to be in series. var async = require(‘async’); if (issue.fields.attachment != ”) { async.forEachOfSeries(issue.fields.attachment,function(attachment,r,callback){ if (typeof issue.fields.attachment[r].content != “undefined”) { var url = … Read more