Optimizing SQL Queries to Handle Multiple Values in Aggregation

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

Removing SQL Server Conversion Failed Date/Time Errors: A Step-by-Step Guide

Transforming Imported Data Using Lookup: A Step-by-Step Guide to SQL Server Transformations

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