Understanding the Pitfalls of COUNT(*) in SQL Server: How to Update Records Correctly

Selecting Distinct Code Clients with Minimized Duplicate Names: A Comprehensive Guide to Managing Complex Datasets

Optimizing SQL Queries Using Outer Apply: Strategies for Improved Performance

How to Return Results for Each Select Case Option Even When Count is 0 or Rows Not Found Using T-SQL

Returning Comma-Separated Email Addresses in SQL Server Using STUFF and XML PATH

Joining Tables When Certain Conditions Must Be Met: A SQL Server Example

Database Schema Design Considerations for Large Tables with Grouping and Ordering: A Step-by-Step Guide to Efficient Performance and Data Integrity

Understanding the Limitations of Integer Division in T-SQL for Accurate Floating-Point Arithmetic

Solving the Gaps-and-Islands Problem in T-SQL: A Step-by-Step Guide

How to Validate Sample Data Against a Table Using a Stored Procedure and Recursive CTE in SQL Server