How to Import Excel Data into SQL Server Using Python and Jupyter Notebook
Python is a powerful and flexible tool for automating data movement between Excel files and databases like SQL Server. With…
SQL Server – How to Create a Unique Key in a Table
A Unique Key is a type of constraint in SQL Server that ensures the values in a column (or a…
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…
Power Query – Unleashing the Power of ETL in Power BI
Power Query is a data extraction and transformation tool built into Power BI, Excel, and other Microsoft products. It simplifies…
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…
Power BI – Internal Query Processing Architecture
This architecture diagram illustrates the internal flow of a DAX query within Power BI—from query generation to data retrieval and…
SQL Server – Why SET NOCOUNT ON Should Be in Every Stored Procedure
SET NOCOUNT ON is a SQL Server command that stops the message showing how many rows were affected by a…
Key Difference between Relational & OLAP Reporting
Feature Relational OLAP Data Access Generalized access 1) Relational table(s)2) Transactional or Summary Table(s) Multi-dimensional (cross-tab) presentation only1) Dimensions &…
How to Pull User Data from Active Directory Using SQL Server
In enterprise environments, Active Directory (AD) plays a central role in managing users and their credentials. There are many use…