May 2019
Intermediate to advanced
484 pages
11h 23m
English
Content preview from Learn T-SQL Querying
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sys.dm_exec_sessions
The sys.dm_exec_sessions DMV lists information about all the sessions that are currently active in the server. This includes both user sessions and system sessions, and it also includes idle sessions that are connected but are not currently executing any queries.
Idle sessions can be identified by looking for rows that have a status of sleeping. When using connection pooling especially, it is common to have several user sessions in sleeping status.
This DMV can be used to view information that is relevant to the session, such as login_name, host_name, program_name, and other properties that would be set at the session level. This can be helpful when trying to identify which applications might be connected to the server, ...
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