Using Case Expressions to Simplify Aggregate Functions in SQL

Passing Arrays into SQL Server Stored Procedures: A Comparative Analysis of Different Methods

How to Calculate Historical Hourly Rates Using SQL Window Functions

Calculating YTD Averages for Each Quarter in SQL: A Comprehensive Approach

Unlocking SQL Server's Power: Mastering Aggregate Functions and Grouping Dates

Effective Duplicate Data Detection Using HAVING, GROUP BY, DENSE_RANK(), and ROW_NUMBER()

Updating Multiple Tables at Once: Simplifying Database Workflows with Foreign Key Constraints

Understanding the T-SQL `ALL` in `CASE` Statement: A Comprehensive Guide

Optimizing Data Copy with Windowed Functions in SQL Server

Mastering Row Numbers and Aggregate Functions: A SQL Tutorial for Data Transformation