To replace strings across one or more columns in MySQL tables, use the REPLACE() function with an UPDATE statement. This is useful when migrating domains, fixing URLs, updating API endpoints, or correcting data patterns at scale. Basic Syntax UPDATE table_name SET column_name = REPLACE(column_name, ‘old_string’, ‘new_string’) WHERE column_name LIKE ‘%old_string%’; The WHERE clause isn’t required,…
HTML entities represent characters that either have special meaning in HTML or benefit from explicit encoding. You have three syntax options: Named entity: &name; (e.g., ©) Decimal numeric: &#number; (e.g., ©) Hexadecimal numeric: &#xhexcode; (e.g., ©) With UTF-8 encoding (the only sensible choice in 2026), most special characters can be typed directly. However, certain characters…
This guide covers building REST endpoints in ASP.NET MVC and consuming them from a frontend application. While this example uses AngularJS (end-of-life 2022), the backend patterns remain relevant for legacy system maintenance. For new projects, migrate to ASP.NET Core with modern frontend frameworks like React, Vue, or Angular. Database Setup Create the parts inventory table:…
Install AWS CLI v2 through your system’s package manager for production deployments. On Debian/Ubuntu: sudo apt-get update sudo apt-get install awscli On RHEL/CentOS/Fedora: sudo dnf install awscli Or use the official installer directly: curl “https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip” -o “awscli-v2.zip” unzip awscli-v2.zip sudo ./aws/install Verify installation: aws –version Configure AWS CLI credentials Set up credentials interactively: aws configure…