Return to Office, But Who’s Really Back? Let SQL Reveal the Truth
The Covid-19 pandemic drastically reshaped the global work culture. As offices shut down, remote work became the norm for millions.…
Category: T-SQL
Bytes vs Characters: The SQL Server Showdown Between DATALENGTH and LEN
When working with strings in SQL Server, we often need to understand how much space they occupy and how many…
SQL Speaks Hindi Too: The Power of Unicode Explained
Did you know your SQL Server can fluently understand and store languages like Hindi, Tamil, Japanese, or even emojis? Gone…
The Easiest Way to Find Duplicate Records in SQL Server
Finding duplicate values in SQL Server is a common requirement when cleaning data, identifying data quality issues, or enforcing uniqueness…
Mastering NULLs in SQL Server: ISNULL and NULLIF Explained
In SQL Server, ISNULL and NULLIF are two essential functions used to handle NULL values, but they serve very different…
SQL Mathematica – Powering Algebra in SQL: Evaluating Binomial Squares
The algebraic identity (a + b)² = a² + 2ab + b² is a foundational formula in mathematics, commonly used…
Building a Lucky Draw System Using SQL Server
Want to randomly pick a winner from a list of participants? Whether you’re running an office contest, event giveaway, or…
Tiny Tweaks, Massive Gains: The Art of SQL Performance Tuning
In SQL Server, performance isn’t always about major overhauls—it often comes down to the small, smart tweaks. Suppressing unnecessary row…
Why We Should Use DEFAULT Constraints in SQL Server
A Default Constraint in SQL Server is used to automatically assign a default value to a column when no value…
Smart Data Correction in T-SQL – Fixing Gender Data Entry Mistakes in Database
Use Case: When Gender Information Gets Flipped! Imagine a scenario where a bug in the front-end application caused a complete…
SQL Mathematica – How to get the Area & Circumference of a Circle
This simple stored procedure calculates the area & circumference of a circle using radius—an ideal example for beginners. It’s designed…
SQL Mathematica – How to get the Area of Rectangle
This simple stored procedure calculates the area of a rectangle using length and breadth—an ideal example for beginners. It’s designed…