May 17, 2026, 11:40 PM
This commit is contained in:
Paweł Domański
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W tym miejscu będziw wszystko co może dotyczyć przestrzeni temporarnej
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--Tempdb session File usage
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--sys.dm_db_session_space_usage : Returns the number of pages allocated and deallocated by each session for the database.
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--sys.dm_exec_sessions: Gives details about the sessions.
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SELECT
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sys.dm_exec_sessions.session_id AS [SESSION ID],
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db_name(sys.dm_db_session_space_usage.database_id) AS [DATABASE Name],
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HOST_NAME AS [System Name],
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program_name AS [Program Name],
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login_name AS [USER Name],
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status,
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cpu_time AS [CPU TIME (in milisec)],
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total_scheduled_time AS [Total Scheduled TIME (in milisec)],
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total_elapsed_time AS [Elapsed TIME (in milisec)],
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(memory_usage * 8) AS [Memory USAGE (in KB)],
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(user_objects_alloc_page_count * 8) AS [SPACE Allocated FOR USER Objects (in KB)],
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(user_objects_dealloc_page_count * 8) AS [SPACE Deallocated FOR USER Objects (in KB)],
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(internal_objects_alloc_page_count * 8) AS [SPACE Allocated FOR Internal Objects (in KB)],
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(internal_objects_dealloc_page_count * 8) AS [SPACE Deallocated FOR Internal Objects (in KB)],
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CASE is_user_process
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WHEN 1 THEN 'user session'
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WHEN 0 THEN 'system session'
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END AS [SESSION Type], row_count AS [ROW COUNT]
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FROM sys.dm_db_session_space_usage
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INNER join
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sys.dm_exec_sessions
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ON sys.dm_db_session_space_usage.session_id = sys.dm_exec_sessions.session_id
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--A long running transaction may prevent cleanup of transaction log thus eating up all log space available resulting space crisis for all other applications.
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SELECT
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transaction_id AS [Transacton ID],
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[name] AS [TRANSACTION Name],
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transaction_begin_time AS [TRANSACTION BEGIN TIME],
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DATEDIFF(mi, transaction_begin_time, GETDATE()) AS [Elapsed TIME (in MIN)],
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CASE transaction_type
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WHEN 1 THEN 'Read/write'
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WHEN 2 THEN 'Read-only'
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WHEN 3 THEN 'System'
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WHEN 4 THEN 'Distributed'
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END AS [TRANSACTION Type],
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CASE transaction_state
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WHEN 0 THEN 'The transaction has not been completely initialized yet.'
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WHEN 1 THEN 'The transaction has been initialized but has not started.'
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WHEN 2 THEN 'The transaction is active.'
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WHEN 3 THEN 'The transaction has ended. This is used for read-only transactions.'
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WHEN 4 THEN 'The commit process has been initiated on the distributed transaction. This is for distributed transactions only. The distributed transaction is still active but further processing cannot take place.'
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WHEN 5 THEN 'The transaction is in a prepared state and waiting resolution.'
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WHEN 6 THEN 'The transaction has been committed.'
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WHEN 7 THEN 'The transaction is being rolled back.'
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WHEN 8 THEN 'The transaction has been rolled back.'
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END AS [TRANSACTION Description]
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FROM sys.dm_tran_active_transactions
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--Long running Queries
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-- sys.dm_exec_requests : Returns information regarding the requests made to the database server.
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SELECT
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HOST_NAME AS [System Name],
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program_name AS [Application Name],
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DB_NAME(sys.dm_exec_sessions.database_id) AS [DATABASE Name],
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USER_NAME(USER_ID) AS [USER Name],
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connection_id AS [CONNECTION ID],
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sys.dm_exec_requests.session_id AS [CURRENT SESSION ID],
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blocking_session_id AS [Blocking SESSION ID],
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start_time AS [Request START TIME],
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sys.dm_exec_requests.status AS [Status],
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command AS [Command Type],
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(SELECT TEXT FROM sys.dm_exec_sql_text(sql_handle)) AS [Query TEXT],
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wait_type AS [Waiting Type],
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wait_time AS [Waiting Duration],
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wait_resource AS [Waiting FOR Resource],
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sys.dm_exec_requests.transaction_id AS [TRANSACTION ID],
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percent_complete AS [PERCENT Completed],
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estimated_completion_time AS [Estimated COMPLETION TIME (in mili sec)],
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sys.dm_exec_requests.cpu_time AS [CPU TIME used (in mili sec)],
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(memory_usage * 8) AS [Memory USAGE (in KB)],
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sys.dm_exec_requests.total_elapsed_time AS [Elapsed TIME (in mili sec)]
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FROM sys.dm_exec_requests
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INNER join
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sys.dm_exec_sessions
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ON sys.dm_exec_requests.session_id = sys.dm_exec_sessions.session_id
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WHERE DB_NAME(sys.dm_exec_sessions.database_id) = 'tempdb'
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-- Determining the Amount of Free Space in tempdb
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SELECT SUM(unallocated_extent_page_count) AS [free pages],
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(SUM(unallocated_extent_page_count)*1.0/128) AS [free space in MB]
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FROM sys.dm_db_file_space_usage;
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-- Determining the Amount Space Used by the Version Store
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SELECT SUM(version_store_reserved_page_count) AS [version store pages used],
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(SUM(version_store_reserved_page_count)*1.0/128) AS [version store space in MB]
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FROM sys.dm_db_file_space_usage;
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-- Determining the Amount of Space Used by Internal Objects
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SELECT SUM(internal_object_reserved_page_count) AS [internal object pages used],
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(SUM(internal_object_reserved_page_count)*1.0/128) AS [internal object space in MB]
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FROM sys.dm_db_file_space_usage;
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-- Determining the Amount of Space Used by User Objects
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SELECT SUM(user_object_reserved_page_count) AS [user object pages used],
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(SUM(user_object_reserved_page_count)*1.0/128) AS [user object space in MB]
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FROM sys.dm_db_file_space_usage;
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-- Obtaining the space consumed by internal objects in all currently running tasks in each session
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SELECT session_id,
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SUM(internal_objects_alloc_page_count) AS task_internal_objects_alloc_page_count,
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SUM(internal_objects_dealloc_page_count) AS task_internal_objects_dealloc_page_count
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FROM sys.dm_db_task_space_usage
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GROUP BY session_id;
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-- Obtaining the space consumed by internal objects in the current session for both running and completed tasks
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SELECT R2.session_id,
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R1.internal_objects_alloc_page_count
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+ SUM(R2.internal_objects_alloc_page_count) AS session_internal_objects_alloc_page_count,
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R1.internal_objects_dealloc_page_count
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+ SUM(R2.internal_objects_dealloc_page_count) AS session_internal_objects_dealloc_page_count
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FROM sys.dm_db_session_space_usage AS R1
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INNER JOIN sys.dm_db_task_space_usage AS R2 ON R1.session_id = R2.session_id
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GROUP BY R2.session_id, R1.internal_objects_alloc_page_count,
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R1.internal_objects_dealloc_page_count;;
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@@ -0,0 +1,19 @@
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-- To check current tempdb size and growth parameters, use the following query:
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SELECT name AS FileName,
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size*1.0/128 AS FileSizeinMB,
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CASE max_size
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WHEN 0 THEN 'Autogrowth is off.'
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WHEN -1 THEN 'Autogrowth is on.'
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ELSE 'Log file grows to a maximum size of 2 TB.'
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END,
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growth AS 'GrowthValue',
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'GrowthIncrement' =
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CASE
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WHEN growth = 0 THEN 'Size is fixed.'
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WHEN growth > 0 AND is_percent_growth = 0
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THEN 'Growth value is in 8-KB pages.'
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ELSE 'Growth value is a percentage.'
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END
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FROM tempdb.sys.database_files;
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GO
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