public boolean fetch()  {  str 50 tmpregno;  QueryBuildDataSource qbds,qbds1,qbds2;  QueryBuildRange queryBuildRange;  QueryBuildRange     rangeTransDate;  QueryRun qr1;  QueryBuildLink QueryBuildLink_1;  query q = new Query();  query q1 = new Query();  ;   //  frmdt = str2date("01/05/2010",123);  //  todt = str2date("30/05/2010",123);   q = this.query();  q1 = this.query();   qbds2 = q.addDataSource(tablenum(_Registration));  qbds1 = qbds2.addDataSource(tablenum(_RegistrationDetails));   qbds = qbds1.addDataSource(tablenum(_Register4));   qbds.joinMode(JoinMode::InnerJoin);  QueryBuildLink_1 = qbds.addLink(fieldNum(_RegistrationDetails, _RegistrationNo), fieldNum(_Register4, RegistrationNo));   qbds.relations(true);   queryBuildRange = qbds.addRange(fieldNum(_Register4, ProcessDate));   rangeTransDate = qbds.findRange(fieldnum(_Register4,ProcessDate));   /*  if(!rangeTransDate.value())  {  rangeTransDate.value(queryRange(dateMin,dateMax));  if (dateMin ==str2date(...
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