Calculating Task Duration and Last Status for Each Technician in SQL

Pivot Table by Datediff: A SQL Performance Optimization Guide

Handling Out-of-Range Values with SQL Joins: A Case Study Approach

Optimizing FIFO Matching of Two Datasets in T-SQL: Converting from "While" Loop to Set-Based Logic or CTE

Returning NULL Values in Aggregate Columns with Complex WHERE Clauses

Mastering Trace Files and Extended Events in SQL Server: A Comprehensive Guide to Saving on Different Partitions

Calculating Excess Employees in Date Ranges Using SQL and Data Analysis

SQL Query Optimization: Extracting Years and Month Columns from a Membership Database

Understanding SQL Joins and Subqueries: A Case Study on Selecting the Most Efficient Query

Pivot Table Creation: A Deep Dive into Unknown Columns