Alternative Approaches to Pivoting Row Data in SQL Server 2012 without Using the Pivot Function

Optimizing Slow Update Queries with Multiple OR Joins: A Step-by-Step Guide

Understanding Date and Time Data Types and Solving Common Problems When Selecting Data from a Date Range

How to Aggregate Events by Year in SQL Server with Conditional SUM Statements

Grouping by Previous Date Values: A Deep Dive into SQL Techniques

Comparing Two SQL Server Tables and Inserting to a Column

Merging Results from Multiple Columns into One: A SQL Server 2012 Solution Using UNION ALL and COALESCE

Fixing SQL Server Errors with Dynamic Pivot Tables Using the STUFF Function