SQL Select Statement for Time and attendance for a month

SQL Select Statement for Time and attendance for a month

Anyone can help with this one please? Our attendance system generates the following data:

Anyone can help with this one please? Our attendance system generates the following data:

Empid    Department  Timestamp                  Read_ID
3221      IT          2017-01-29 11:12:00.000    1
5565      IT          2017-01-29 12:28:06.000    1
5565      IT          2017-01-29 12:28:07.000    1
3221      IT          2017-01-29 13:12:00.000    2
5565      IT          2017-01-29 13:28:06.000    2
3221      IT          2017-01-30 07:42:15.000    1
3221      IT          2017-01-30 16:16:15.000    2
3221      IT          2017-01-31 09:05:00.000    1
3221      IT          2017-01-31 11:05:00.000    2
3221      IT          2017-01-31 13:20:00.000    1
3221      IT          2017-01-31 16:10:00.000    2

Where Read_ID value, 1 = Entry 2 = Exit

I'm looking for SQL query to run on MS SQL 2014 that summarize attendance time for each employee on monthly basis, for instance

Empid   Department  Year    Month   TotalHours
3221    IT          2017    1       15:24
5565    IT          2017    1       02:00


sql sql-server

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