> I guess I was actually on FB2.5. After switching back to FB1.5, I think I'm > out of luck because the SUBSTRING internal function > requires integer literals. So this statement isn't possible: > > substring( input_string from idx-1 for 1 )
To get n-th character from string, just remove first n-1 characters by (n-1)x calling tmp_string = substring(tmp_string from 2); and then get first one by substring(tmp_string from 1 for 1 ) Ivan
