How can I have a charge on my record when I was never arrested or given a court date or anything?

The case is from 2009 and I was never arrested or taken to court or asked to come to court at all? I only recently found that I even had it on my record. It is on my record in the county that I live in but not on the Florida Department of Law Enforcement website because I paid and did a background check on myself. I have no record with them whatsoever. So, how can I have a county charge on my record but not with FDLE? I also have never had a warrant out for my arrest or anything. The information they have on file is all my information and there was an altercation with a person but the person and I was considered mutual in the "combat".