I have got a list of job numbers that are 10 digits long. If an address has multiple jobs it has the same job number. I need to count the number of different job numbers so I know how many properties are being visited.
i.e
1000203021
1000203021
1000232312
would count as 2 and not 3
Thanks in advance for any help
i.e
1000203021
1000203021
1000232312
would count as 2 and not 3
Thanks in advance for any help