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By ronen ariely on 18/08/2020 21:04
From time to time I come across a question in a forums from someone who claim that SQL Server Execution Plan shows that the cost of a specific operator or the sum of operators is more than 100 percentage. The discussions usually get answers that this is related to the SQL Server Execution Plan, while the truth is that this has nothing to do with the server side but the client tool which calculate the percentages of the cost. In this post I will summarize a bit more information and explain how we can be sure that this issue is indeed in the client side and not a result of information which come from the server (at least the cases I am familiar with).