Art of Coding – Page 8 – Art of Coding

Use Python’s Requests and BeautifulSoup to Scrape Product Prices

Use Python's Requests and BeautifulSoup to Scrape Product Prices Web scraping allows developers to automate data collection from websites, making it a powerful tool for monitoring prices, extracting content,…

Oana Rinaldi January 23, 2026

SQL

Speed Up SQL Queries Using Indexes—With Before-and-After Benchmarks

Speed Up SQL Queries Using Indexes—With Before-and-After Benchmarks SQL performance tuning is one of the most impactful ways to improve an application’s responsiveness. One of the most powerful tools…

Oana Rinaldi January 22, 2026

JavaScript

Building a Simple CAPTCHA System in JavaScript Without Dependencies

Building a Simple CAPTCHA System in JavaScript Without Dependencies Spam and automated bots are common nuisances when building web forms. To prevent bot submissions, a well-known solution is the…

Oana Rinaldi January 21, 2026

Databases

Find Duplicates Fast — SQL vs Python Algorithm Showdown

Find Duplicates Fast — SQL vs Python Algorithm Showdown When you're working with massive datasets—think millions of rows—duplicate detection becomes more than just a simple query or a loop.…

Oana Rinaldi January 20, 2026

Python

Scraping Job Listings from Indeed Using Python and BeautifulSoup

Scraping Job Listings from Indeed Using Python and BeautifulSoup IntroductionWeb scraping offers developers an easy way to extract structured data from websites. One practical example is collecting job listings…

Oana Rinaldi January 19, 2026

Java

Local File Sync Tool in Java Using WatchService

Local File Sync Tool in Java Using WatchService Keeping directories in sync is a common task for developers and system administrators alike — whether you're backing up a folder,…

Oana Rinaldi January 18, 2026

SQL

SQL Query Recipes for Cleaning Dirty Data

SQL Query Recipes for Cleaning Dirty Data Dirty data is a persistent challenge in every data system. Whether it's duplicate records, null values, inconsistent formatting, or typos, bad data…

Oana Rinaldi January 8, 2026

Python

Find Broken Links: Web Crawler in Python Using Requests and BeautifulSoup

Find Broken Links: Web Crawler in Python Using Requests and BeautifulSoup Broken links are a quality and SEO killer. Whether you're managing a personal blog, a portfolio, or an…

Oana Rinaldi January 4, 2026

SQL

SQL Window Functions: Ranking Sales by Region in One Query

SQL Window Functions: Ranking Sales by Region in One Query Window functions in SQL offer a powerful way to perform calculations across sets of rows related to the current…

Oana Rinaldi January 3, 2026

Java

Creating a Java API Client for GitHub Repos in Under 50 Lines

Creating a Java API Client for GitHub Repos in Under 50 Lines When you're starting out with REST API integrations in Java, GitHub provides an excellent hands-on opportunity. In…

Oana Rinaldi January 2, 2026