I'm trying to find duplicate invoice numbers in a table and am looking for an "is not unique" or "where not unique" type function in 6.5++. Am I missing it, or does it just not exist?
wwwww
( @ @ )
-------oOO---(_)---OOo-------
Damon J. Gray
Anvil Corporation Business Services
(360) 937-0770
oooo0 0oooo
( ) ( )
----------\ (----) /-----------
\__) (__/

