public StudyDeleteRecordCollection FetchAll()
 {
     var coll = new StudyDeleteRecordCollection();
     var qry = new Query(StudyDeleteRecord.Schema);
     coll.LoadAndCloseReader(qry.ExecuteReader());
     return coll;
 }
 public StudyDeleteRecordCollection FetchByQuery(Query qry)
 {
     var coll = new StudyDeleteRecordCollection();
     coll.LoadAndCloseReader(qry.ExecuteReader());
     return coll;
 }