Browsing Tag
sql
75 posts
Getting Started with SQL DISTINCT
SQL DISTINCT is an essential feature for eliminating duplicate rows in query results. This article offers a quick…
🚀 SQL vs NoSQL: Which Database Will Make or Break Your Project?
Choosing the right database can be the game-changer for your project’s success. But with so many options, how…
What is a Database? A Beginner’s Guide to Storing and Organizing Data
What is a Database? A database is an organized collection of data that is stored and accessed electronically.…
Farewell to Window Functions, Embrace esProc SPL
Early SQL was extremely unsuited for ordered computations. While theoretically possible, the practical difficulties made it essentially unusable.…
Complement a certain average value to ensure that the total sum remains unchanged:SQL VS SPL
An invoice table in the SQL Server database has one amount for each project, and each project in…
Big Boost for Flink & Spark SQL: Both Tools Just Got Updated!
The latest update of SparkSQLHelper mainly introduces support for hint completions, with the release version being 2025.2.0. Plugin…
SQL Query Execution Order
How SQL Queries Are Executed Behind the Scenes Note: The flow described below isn’t how SQL engines always…
Testing Is a Cross-Cutting Concern. So Are Databases
We’re all familiar with the principles of DevOps: building small, well-tested increments, deploying frequently, and automating pipelines to…
SQL Injection – In Just 5 Minutes!
In today’s interconnected world, data security is a top priority. However, despite advancements in technology, one old vulnerability…
Relational Database Design: DBMS
Relational Database Design: Comprehensive Guide Relational database design is the cornerstone of effective database systems, focusing on organizing…
