All Posts
Browse all tutorials, guides, and articles on TechnoApple.
Build Your First Power BI Report: Step-by-Step with a Real Dataset
2026/04/27·12 min readA hands-on walkthrough for building a complete Power BI report from scratch using a retail sales dataset covering 2023–2025. Covers data loading, Power Query transformations, DAX measures, and building interactive visualizations.
How to Get Started with Power BI
2026/04/26·7 min readPower BI is Microsoft's enterprise-grade business intelligence platform. This guide covers how to get started with Power BI Desktop, connect data sources, and build your first report.
C# Code Organization and Documentation Without Noise — Clean Code
2026/04/26·8 min readOrganize C# projects and classes for maintainability, and write comments that explain why instead of what.
Modern C# Features That Improve Code Readability — Clean Code
2026/04/21·10 min readUse modern C# features like records, pattern matching, collection expressions, and primary constructors without sacrificing maintainability.
C# Testing and Testability for Maintainable Systems — Clean Code
2026/04/14·9 min readWrite cleaner C# code by designing for testability and focusing tests on behavior using AAA and descriptive naming.
C# Code Smells and Refactoring Patterns That Matter — Clean Code
2026/04/09·11 min readIdentify common C# code smells and apply practical refactoring patterns to improve readability, safety, and maintainability.
C# Error Handling and Defensive Coding in ASP.NET Core — Clean Code
2026/04/03·10 min readBuild resilient C# APIs with specific exceptions, ProblemDetails, validation boundaries, and immutable models.
C# Class Design and SOLID Principles in Real Projects — Clean Code
2026/03/29·10 min readLearn how to apply SRP, dependency inversion, and composition in C# to build maintainable, extensible production services.
C# Naming Conventions and Method Design — Clean Code
2026/03/22·9 min readPractical C# naming conventions and method design rules that improve readability and reduce bugs in production code.
C# Clean Code Roadmap: A Practical Guide to Production-Quality Code
2026/03/18·5 min readStart here for a practical C# clean code series focused on naming, methods, SOLID, error handling, testing, and modern C# features.
ML Regression — House Price Prediction with Python
2026/02/24·10 min readA step-by-step guide to building a Linear Regression model for house price prediction using Python, scikit-learn, and pandas — covering EDA, feature engineering, training, and evaluation.
How to Fix 502 and 503 Gateway Errors on AWS EC2 with an Application Load Balancer
2026/02/14·12 min readA deep-dive into why 502 and 503 errors appear on a Node.js app hosted on AWS EC2 behind an ALB, what causes them, and how to fix them properly with an Auto Scaling Group and a robust bootstrap script.
How to Build Your First Vertex AI Model Using AutoML
2026/01/02·5 min readA practical guide to predicting housing prices using GCP Vertex AI with AutoML Tabular.
Git Merge Patterns for Main and Release Branches
2025/02/02·6 min readA practical guide on using Squash and Fast-Forward patterns to manage a clean Git workflow.
Get Start with Web Worker
2024/03/09·1 min readHow to get start with Web Worker
How to Use PartyTown with GA4 Events
2024/03/01·3 min readThis blog demonstrates how to use PartyTown to run GA4 tracking in a Web Worker to avoid blocking the browser's main thread.
How to Use SnowSQL to Interact with Snowflake
2024/01/06·2 min readSnowflake is designed for scalability with big data. This blog shows how to get started with Snowflake using SnowSQL.
How to Get Started with Snowflake
2024/01/05·2 min readSnowflake is designed for scalability with big data. This blog shows how to get started with Snowflake and lists resources to help you begin.
How to Create Terraform State File for Current Resources
2024/01/03·1 min readThis blog shows how to run Terraform to create a state file from existing resources.
How to Create GCP Schedule Job with Terraform
2024/01/01·2 min readThis article demonstrates how to use Terraform to deploy a GCP Schedule Job.
How to Run Terraform with Input Variables
2023/12/23·2 min readThis blog shows how to use Terraform variables to move environment variables out of the code, so you can run Terraform for different environments and inject the variables for each one.
Use Big Query to aggregate data to find ranking
2023/12/05·2 min readCompare Similar DataSet in BigQuery
2023/08/07·1 min readHow to use BigQuery to Extract JSON Array
2023/08/05·1 min readHow to Use Big Query to Get Single Columns Values from All Rows
2023/06/06·1 min readHow to Use Big Query SQL Procedure
2023/06/05·1 min readHow to Create Stored Procedure with Big Query SQL
2023/06/01·1 min readHow to Test GCP Function Locally with Node.js
2023/06/01·1 min readThis blog shows how to test GCP Cloud Function locally with Node.js.
How to Use Big Query to Find Max Sequence Number
2023/05/05·1 min readThis blog show how to use Big Query to find max number from a sequence number for a data set.
Deploy GCP Cloud Function with Event Trigger via PubSub
2023/04/06·2 min readThis blog shows how to create a simple Node.js app and deploy it to GCP Cloud Functions as a Pub/Sub event trigger.