Updating the display during lengthy operations

Queue waits are most typically seen with system background tasks such as the deadlock monitor and deleted record cleanup tasks.These tasks will wait for work requests to be placed into a work queue.sys.dm_exec_session_wait_stats (Transact-SQL) provides similar information by session. On SQL Database Standard and Basic Tiers, requires the Server admin or an Azure Active Directory admin account.Resource waits Resource waits occur when a worker requests access to a resource that is not available because the resource is being used by some other worker or is not yet available.This wait state is used when SQL Server disables versioning by using the ALTER DATABASE statement.Occurs when a task is waiting to access a file when an external backup is active. A count larger than five per user process may indicate that the external backup is taking too much time to finish.The data structure is locked to maintain its integrity if there is parallel access.

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Wait times may be long, from several minutes to several hours.Occurs in a MS DTC worker session when the session is waiting to take ownership of a MS DTC transaction.After MS DTC owns the transaction, the session can roll back the transaction.parameter document and no documents match the specified filter, then the operation creates a new document and inserts it.If the update and replace methods include the Update Options parameter that specifies Update Options.upsert(true) and no documents match the specified filter, then the operation creates a new document and inserts it.