The 'rows processed' in SQL stats refers to the total number of rows returned by a SQL statement within a time period.
Some SQL statements have their rows processed directly linked to their executions, while others show no pattern because different
input parameters produce different result sets.
We need to pay attention to those SQL statements with no row processed and understand them
in the context of application logic. It could be that those SQL statements are expected by design. Or,
it could be that the business logic changed over time and those SQL statement could not produce result
as expected before. If that is the case, those SQL statements need to be stopped.
All running SQL statements consume system resources and we will benefit from reducing unnecessary workloads.