PySpark offers powerful functions to manipulate and transform data, and regex_replace is one of them. In this guide, we'll explore the basics of using regex_replace with simple examples. What is regex_replace? regex_replace is a PySpark function that replaces substrings that match a regular expression with a specified string. It's handy for cleaning and…

Sending data securely over the internet is crucial, especially when dealing with sensitive information. In this tutorial, we’ll explore a powerful technique called HMAC (Hash-based Message Authentication Code) to ensure the integrity and authenticity of our API requests. We’ll also leverage Databricks Secrets to securely store our API keys. Prerequisites: Databricks…

So far, we’ve been sending simple strings to our browsers, but Flask can do so much more! Enter HTML templates, often referred to as the artistic canvases of web development. In Flask, we call these templates. To bring them to life, we employ the magical render_template() method. 🪄✨ from flask…

Flashing is a beacon of communication in Flask, guiding users through successes and pitfalls. 🚦 Let’s shed light on the basics: Basic Structure: flash(message, category) - message: The actual message to be flashed. - category: Optional, user-defined (e.g., error, warning, success). Example without Categories: @app.route('/login', methods=['GET', 'POST']) def login(): if request.method == 'POST': if request.form['username'] !=…

Jinja templating brings the magic of control structures to your Python web applications! Let’s unravel the enchanting world of FOR loops and IF-ELIF-ELSE statements. FOR LOOP: Unleashing Iterative Magic ✨ Loop through a sequence effortlessly with a FOR loop. Picture a list of users stored in a variable called users: <ul> {% for user in…

Hello SQL sorcerers! ✨ Ready to add a touch of magic to your database skills? Today, we’re diving into the enchanted realm of SQL queries to unravel the secrets of the mystical INSERT IGNORE statement. 🎩✨ 🌟 The SQL Spellbook: INSERT IGNORE 🌟 Picture this: You’re tasked with populating your database with a plethora of enchanting tags…

Ahoy, data engineers! Ready to ride the waves of API requests with Azure Data Factory? Today, we’re setting sail on a journey to master the art of sending x-www-form-urlencoded requests using the mighty Web Activity. Web Activity: Your Seafaring Ally 🚢 Web Activity in Azure Data Factory is like a trusty ship ready to navigate the…

Hey there, budding data engineer! Ready to embark on a quest to retrieve some JSON data from Azure Data Lake Storage using Azure Data Factory? Great! Let’s keep it fun and simple. Step 1: Join the Azure Party 🎉 First things first, ensure you’re connected to Azure Data Lake Storage via Azure Data Factory. …

Welcome to a comprehensive tutorial on writing to Delta tables with efficient partitioning using PySpark! 🚀 In this guide, we’ll explore the concepts of partitioning and Delta Lake in the context of a real-world scenario. Prerequisites: Environment Setup: Ensure you have access to a Databricks workspace or a local Apache Spark…