The difficulty level, as per teachers and students who appeared for the exam, found the paper of moderate level of difficulty ...

MySQL table primary keys and unique indexes prevent multiple rows with the same index from being added to the table. If you try to insert a duplicate row with a ...

To develop and manage web applications on the local system, most developers use XAMPP. It is an open-source local web server environment that not only helps to run the PHP applications but also allows ...

As D2L only provides the ERD for the tables and no create templates, nor including the types and sizes via the API. Here are the MySQL Create statements for the tables. You may notices that each table ...

Currently, Open edX runs with MySQL tables that are encoded with utf8mb3. It is time that we upgrade to utf8mb4 (the default). edX.org is currently upgrading their environment to MySQL 8.0 (and ...

This article was contributed by Edwin Sanchez who is a brand ambassador of Devart, software developer and project manager. There is this one problem that’s killing your MySQL database performance.

It is not uncommon that a single SQL statement such as a SELECT statement includes sub-SQL SELECT statements, or sub-queries, that generate a sub-result set within the top-level statement. If these ...

This tutorial walks you through the steps to select data in a table from a MySQL database using PHP in XAMPP stack. Alternatively, you can use the LAMP or LEMP stacks which provide both PHP and MySQL.