Google Spreadsheet Columns Not Containing

Question

I'm trying to filter out data sets in Google Spreadsheets to get something along the lines of:

=not(search("#"; (sort(unique(A:A)))))

Basically, I want all of A:A, except columns containing the string #

Any help would be appreciated :)

Answer 1

=SORT(UNIQUE(FILTER(A:A,ISERROR(SEARCH("#",A:A)))))