Old-school approaches to query optimization have typically considered the problem in a static context — i.e., the optimizer works independently to come up with an optimal plan that is then ...

Cost-Based Optimizer: A type of query optimizer that evaluates different execution plans based on estimated resource costs, such as CPU and I/O usage.

How It Used To Be Prior to SQL Server 2017, query processing was a monolithic process. The SQL Server query optimizer would first construct a query plan for a batch of T-SQL code, a stored procedure, ...