tempdb monitoring queries.
--Script to find historic tempdb usage by session. SELECT TOP 5 * FROM sys.dm_db_task_space_usage WHERE session_id > 50 ORDER BY user_objects_alloc_page_count + internal_objects_alloc_page_count DESC ; -- Finding the top 5 sessions running tasks that use tempdb SELECT * FROM sys.dm_db_session_space_usage WHERE session_id > 50 ORDER BY user_objects_alloc_page_count + internal_objects_alloc_page_count DESC ; -- Script to total tempdb usage by type across all files. SELECT SUM(user_object_reserved_page_count) AS user_object_pages, SUM(internal_object_reserved_page_count) AS internal_object_pages, SUM(version_store_reserved_page_count) AS version_store_pages, total_in_use_pages = SUM(user_object_reserved_page_count) + SUM(internal_object_reserved_page_count) + SUM(version_store_reserved_page_count), SUM(unallocated_extent_page_count) AS total_free_pages FROM sys.dm_db_file_space_usage ; --- To get text and plan SELECT session_id, text, query_plan FROM sys...