Art of Coding – Art of Coding

Optimize SQL Queries for Real-Time Dashboards

Optimize SQL Queries for Real-Time Dashboards Overview: Real-time dashboards rely on fast, efficient database queries to present up-to-the-second updates. Unfortunately, poorly optimized SQL queries can rapidly degrade performance, leading…

Oana Rinaldi February 28, 2026

Shell / Bash

Scheduling Automated Backups Using Cron and Bash Scripts

Scheduling Automated Backups Using Cron and Bash Scripts IntroductionManaging regular backups is critical for maintaining data security and business continuity. Instead of remembering to back up manually, you can…

Oana Rinaldi February 27, 2026

DevOps / CLI Tools

Build a Command-Line Tool in Python That Organizes Your Downloads Folder

Build a Command-Line Tool in Python That Organizes Your Downloads Folder IntroductionYour Downloads folder is often a dumping ground for PDFs, ZIPs, images, and all sorts of random files.…

Oana Rinaldi February 26, 2026

Automation Scripts

Automate Your File Cleanup with a Python Script

Automate Your File Cleanup with a Python Script Introduction:Maintaining clean file directories is crucial for developers, IT admins, and anyone managing large volumes of data. Over time, logs, temporary…

Oana Rinaldi February 25, 2026

Sorting Algorithms

Implementing a Custom Sorting Algorithm in Python

Implementing a Custom Sorting Algorithm in Python IntroductionSorting is one of the most common tasks in programming, forming the backbone of many data processing and optimization routines. While Python’s…

Oana Rinaldi February 24, 2026

Java

Java Streams Demystified: Process Nested Collections Like a Pro

Java Streams Demystified: Process Nested Collections Like a Pro Working with nested collections in Java can be daunting—especially when you need to extract, transform, or aggregate data efficiently. Thankfully,…

Oana Rinaldi February 17, 2026

JavaScript

Mastering Debounce in JavaScript: Build a Custom Hook Without Libraries

Mastering Debounce in JavaScript: Build a Custom Hook Without Libraries Handling user input effectively in modern web apps is critical to maintaining a responsive and performant UI. When users…

Oana Rinaldi February 16, 2026

Shell / Bash

Crawl Websites in Bash: Lightweight Link Extractor with curl & grep

Crawl Websites in Bash: Lightweight Link Extractor with curl & grep If you've ever wanted to explore webpages programmatically without relying on heavyweight tools or libraries, Bash can be…

Oana Rinaldi February 15, 2026

Java

Implement the Dijkstra Algorithm in Java from Scratch

Implement the Dijkstra Algorithm in Java from Scratch Dijkstra’s Algorithm is one of the most fundamental and widely used graph algorithms for finding the shortest path from a single…

Oana Rinaldi February 14, 2026

Shell / Bash

Generate Strong Passwords Securely Using OpenSSL + Bash

Generate Strong Passwords Securely Using OpenSSL + Bash Strong passwords are a fundamental pillar of cybersecurity hygiene, especially when you're automating scripts, working with APIs, or building web applications.…

Oana Rinaldi February 13, 2026