VVed Pandey·Aug 20Masterclass on TypeScriptIf JavaScript works, why was TypeScript created? Today we'll answer exactly that, and along the way we'll understand how types work, why interfaces and generics exist, and how a TypeScript project run16 min read·vedpandeydev.hashnode.dev1
JJohnny Santamaria·Mar 28Improving MultiPartitionKey Typing in Dagster: A Deep DiveEnhancing Type Safety and Flexibility in Partitioned Data Pipelines12 min read·johnny603-repocasestudies.hashnode.dev
AAshifur Rahaman·Oct 16, 2025Advanced SQL - Set OperationsSQL set operations combine the results of two or more SELECT statements into a single result set. These operators are similar to mathematical set theory concepts and are used to merge, find commonalities, or identify differences between data sets. Fo...3 min read·sqlinsights.hashnode.dev
CChetan Datta·Oct 12, 2025Disjoint Set - Data StructureIntroduction A disjoint set is a data structure that helps determine if two nodes are part of the same component efficiently. While BFS or DFS can be used to check this, a disjoint set can perform the task in constant time. It is particularly useful ...2 min read·chetan77.hashnode.dev
DDbVisualizer·Jul 24, 2025SQL UNION ALL: The Fastest Way to Combine Result SetsUnderstand SQL UNION ALL and how it preserves duplicates. Learn syntax, best practices, and how it differs from JOIN and UNION.2 min read·thetable.hashnode.dev
DDbVisualizer·Jul 20, 2025SQL UNION vs UNION ALL: Merge SELECT Results in SQL Like a ProMerge multiple SELECT queries with SQL UNION and UNION ALL. Learn syntax, differences, examples, and use cases.2 min read·thetable.hashnode.dev
SSteve Hatmaker Jr.·Oct 29, 2024Understanding SQL Joins: A Simple GuideHave you ever tried to combine pieces of information from different sources? Maybe you have a list of your friends and another list of their favorite games. You might want to see who likes which game. In databases, we use something called joins to co...5 min read·stevehatmakerjr.com
JJyotiprakash Mishra·Dec 19, 2023Unions aren't always scary!Unions in C are user-defined data types that allow different data members to share the same memory space. They are particularly useful when dealing with situations where different data members need to occupy the same memory space at different times, ...1 min read·blog.jyotiprakash.org
Wwoodstock·Dec 9, 2023대수 타입(Algebraic type)대수 타입(Algebraic type) 대수 타입이란 여러개의 타입을 합성해서 만드는 타입을 말한다. 합집합(Union) 타입 let a: string | number | boolean; a = 1; a = "hello"; a = true; Union 타입으로 배열 타입 정의하기 let arr: (number | string | boolean)[] = [1, "hello", true]; Union 타입과 객체 타입 type Dog = ...1 min read·woodstock.hashnode.dev
AAkhil Nanavati·Aug 30, 2023Revolving Credit Lines with UnionIn today's world, how do we make payments? What do we use to make payments? What do we do to take out loans? How do we repay loans? We are at the mercy of traditional banks and their systems for facilitating each one of these. But are they always saf...4 min read·akhilnanavati.hashnode.dev
