To View list of Sessions

security-audit
#security-audit#session
select * from sys.dm_exec_sessions

--or

sp_who2

--or

Declare @tempTable table (
SPID INT,Status VARCHAR(255),
Login VARCHAR(255),HostName VARCHAR(255),
BlkBy VARCHAR(255),DBName VARCHAR(255),
Command VARCHAR(255),CPUTime INT,
DiskIO INT,LastBatch VARCHAR(255),
ProgramName VARCHAR(255),SPID2 INT,
REQUESTID INT
);

INSERT INTO @tempTable EXEC sp_who2

select * from @tempTable where SPID >55