Removing Duplicate Records with Conditions Using SQL

Calculating the Count of Records Across Multiple Tables: A Comprehensive Guide to SQL Solution

Creating a Pivot Table in SQL Server: A Comprehensive Guide

Finding Multiple Maximum Values in SQL Server Using Analytical Functions

Using LAG for Data Analysis: When to Use and How to Solve Common Issues with Window Functions in SQL Server.

Calculating Quartiles in Data Analysis: Methods and Importance

How to Handle Duplicate Data in SQL: Using Various Techniques for Clean Data Sets

Calculating Monthly Differences with SQL: Handling Duplicate Months and Applying the LAG Function