識別 TempDb 使用情況

以下查詢將提供有關 TempDb 使用情況的資訊。通過分析計數，你可以確定哪些因素會影響 TempDb

SELECT
 SUM (user_object_reserved_page_count)*8 as usr_obj_kb,
 SUM (internal_object_reserved_page_count)*8 as internal_obj_kb,
 SUM (version_store_reserved_page_count)*8  as version_store_kb,
 SUM (unallocated_extent_page_count)*8 as freespace_kb,
 SUM (mixed_extent_page_count)*8 as mixedextent_kb
FROM sys.dm_db_file_space_usage