Initializes a System.Data.IDbCommand object to set referencedFile that corresponds to the sopInstanceUid in the 'Local Store'.
command
Type: System.Data.IDbCommand The database command that will be initialized to execute the query.
sopInstanceUid
The SOP Instance UID that identifies the instance.
referencedFile
The referenced file.
If a Leadtools.Dicom.DicomDataSet is stored locally, the referencedFile gives the full path of the location. If a Leadtools.Dicom.DicomDataSet is stored externally (and not locally), the referencedFile is the empty string.