PinnedCarlos da CostainTowards AIAdvanced SQL for Data Analysis —Part 1: Subqueries and CTEReady to elevate your data analysis skills from beginner to intermediate? Dive into advanced SQL concepts and unlock new data insights…5 min read·Apr 30, 2024--2--2
PinnedCarlos da CostainLearning DataExploratory Data Analysis (EDA) using SQL — Sales AnalysisUnlock insights from a retail database with SQL6 min read·Jan 30, 2024--4--4
Carlos da CostaThanks, mate!Sure, recursive CTEs are commonly used when dealing with hierarchical data. A classic example is organizational data.1 min read·4 days ago----
Carlos da CostainLearning DataData Cleaning with SQLWhen building a machine learning model or engaging in a data analysis project, we need to ensure that the data being used is of the best…9 min read·Jan 3, 2024--4--4
Carlos da CostaSQL Joins 101 — A Guide to Data FusionReal-world databases are like puzzles composed of multiple tables with different relationships therefore a query might be composed of more…6 min read·Nov 27, 2023--1--1
Carlos da CostaHow to Get Started with SQL QueryingAre you embarking on a journey to become a data analyst, data scientist, or software developer, there is one essential skill in all of…7 min read·Nov 10, 2023----
Carlos da CostaCreate a Roman Numerals Converter in JavascriptHey guys, today we will be building a roman numerals converter app in Javascript, you can check out the app in action here.4 min read·Apr 16, 2019--4--4
Carlos da CostaDevelop a To-Do List APP in Vanilla JavascriptToday we will be building a very simple To-Do List app using pure javascript, you can check it out live here. A good practice exercise for…4 min read·Mar 19, 2019--5--5
Carlos da CostainWe’ve moved to freeCodeCamp.org/newsHow to manipulate the DOM in Vanilla JavaScriptSo you have learned now variables, selection structures, and loops. Now it is time to learn DOM manipulation and start doing some cool JS…7 min read·Mar 12, 2019--11--11