Understanding the Issue with Using a Column Instead of a String Constant in SQL Queries for Date Constants

How to Group Rows in SQL Server Based on Certain Conditions Using Window Functions

Extracting IP Addresses from Strings in SQL Server Using PATINDEX

Calculating Days Between Contracts in SQL Server: A Step-by-Step Guide to Creating a New Table with Historical Data

Transposing Rows to Columns in SQL Server 2008: A Step-by-Step Guide

Recursive CTEs, Row Numbers, and Partitioning: A Powerful Combo for Gaps-and-Islands Problems

Summing Digits in a Column to Get One Number: SQL Server Functions for Efficient Calculation

Creating Labels for Work Shifts When a Shift is Spread Across Midnight: A SQL Server Solution

Optimizing Date Range Merging with Gaps-and-Islands Problem Solution

How to Add a New Column to Two Tables Based on a Condition in MySQL/PostgreSQL