How to Group Entities That Have the Same Subset of Rows in Another Table

Constructing New Columns Using Window Functions: A Comprehensive Guide to Handling Prior and Latest Values

Pivot Functionality: Unpacking and Implementing the Concept with SQL

How to Get Record Count for Each Day of the Week in SQL Server

SQL Server SUM Function: Mastering Aggregate Calculations with GROUP BY, HAVING, CTEs, and Subqueries

Creating Time-Dependent Tables in SQL with System-Versioned Temporal Tables

Unpivoting Table Diffs in SQL: A Purely SQL Solution for Data Comparison

Handling Missing Values in Joins: Mastering Left Joins to Avoid Data Inconsistencies

Understanding Trim and Replace Functions in MSSQL: Why They Fail When Used with INTO

SQL Server: Finding Maximum Value Across Multiple Databases Using CTEs