Need help Cost query plan information

Question

HI expert,

what's the meaning Cost: 100% 0.0002s 2 of 2(100%) on Execution Plan operator result?

thanks for very valued answer

warm regards,

Urbel

Answer 1

In an execution plan for SQL Server, the cost associated with an operator indicates the estimated resource usage for that operator relative to the total cost of the entire query. The notation you provided, Cost: 100% 0.0002s 2 of 2(100%), can be interpreted as follows:

• Cost: 100%: This means that this operator represents 100% of the total estimated cost for the query plan. In this context, it is the most significant operator in the plan.
• 0.0002s: This indicates the estimated execution time for this operator, which is 0.0002 seconds.
• 2 of 2(100%): This suggests that this operator is the second of two operators in the execution plan, and it accounts for 100% of the cost associated with the query execution.

Overall, this information helps you understand the performance characteristics of the query and where the majority of the resources are being utilized.