My question involves criminal records for the state of: IL

7 years ago my husbad and i were arguing/fighting and he called the cops. After talking to us they arrested me and took me to jail. The next morning they let me go. The judge spoke one line with me....don't get so angry again or fight with your husband. I do not even know why or what the charge was. I went to the county court clerk and they said there was no record. The night of the arrest i was taken there. I looked online and no record. why can't i find a record. was that not an arrest???they did fingerprint me..kept me one night morning the judge said i can go and nothing else was told. nobody said anything about any charges and i never asked. Where can i find the record or to find out what that incident meant. please respond