As we use PERFMON – Performance Monitor to identify real time happening on SQL Server, Here using a DMV “sys.dm_os_performance_counters” may be used to calculate number of transactions on SQL Server as

DECLARE @Counter bigint

SELECT @Counter = cntr_value FROM sys.dm_os_performance_counters
WHERE counter_name = ‘Transactions/sec’
AND object_name=‘SQLServer:Databases’
AND instance_name =‘Test’   – Your DB Name

– Wait for 1 second

WAITFOR DELAY ’00:00:01′

SELECT
cntr_value – @Counter FROM sys.dm_os_performance_counters
WHERE counter_name =‘Transactions/sec’
AND object_name =‘SQLServer:Databases’
AND instance_name =‘Test’– — Your DB Name