Checking for Duplicate strings

[MikeHenson]

working on a sewer project and assigning new names to about 1500 manholes. Is there a way to check my data to see if there are duplicate names that I have assigned? If so, can you point me in the right direction?
Thanks

[RobertBorchert]

Open it in MS Access and create a find duplicates query.

You can then make a new table from the query and export the new table as a .csv which you can bring into ArcGIS.