Optimizing Heavy Queries in SQL Server: Running Total Case Study
Query performance optimization is one of the most critical challenges in database management. Even a well-designed system may face performance bottlenecks when queries grow in complexity or when they are executed against large datasets. Among the common performance issues, calculating Running Totals stands out as a frequent requirement in reporting and analytics workloads — but it can also become a significant source of inefficiency if not implemented correctly. In this case study, I will share a real-world example from my recent work with SQL Server, where a heavy query built on a large view suffered from slow performance due to an


