Blocking is an entirely normal part of the way that SQL Server works, although there is a distinction between necessary and problematic blocks that you need to appreciate if you are to ensure ...
When DER.Session_ID Is Null Then 'Blocking session does not have an open request and may be due to an uncommitted transaction.' When DER.Wait_Type Is Not Null Then 'Blocking session is currently ...
-- Description: Summary of blocked and blocking sessions based on the active session history from the SGA. The link to blocking sessions is deliberately nonunique without jointing to sample_id to ...
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