A consultant changed the recovery model from full to simple for our production SQL databases. I would like to set the recovery model back to full. However, the log files (.ldf) have a date/time which is the same as the .mdf files. I'm not sure what to do with the log files. Should I delete them or leave them alone? I wonder why the log files have the same date/time as the the .mdf files if the recovery model is set to simple? Thank you.