comparing list of computer name

[step8876]

I am getting a list of computer names every 8 hours, I am trying to find a way to when computers are added or removed

Computer name	timestamp
computer1	1/18/19 6:10		1/18/19 6:10	3
computer2	1/18/19 6:10		1/18/19 14:10	3
computer3	1/18/19 6:10
computer2	1/18/19 14:10
computer 3	1/18/19 14:10
computer4	1/18/19 14:10

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</tbody>

I can get the total for each for date.
looking for a way to compare the list from 6:10 to the list from 14:10 and output if how many new and how many removed

 

[ranman256]

Microsoft Access can do this in a simple query.