qbds = q.addDataSource(tableNum(TmpPaymentBalanceTotal_RU)); qbds2 = qbds.addDataSource(tableNum(TmpPaymentBalanceTotal_RU) ); qbds2.joinMode(JoinMode::InnerJoin); qbds2.addLink(fieldNum(TmpPaymentBalanceTotal_RU, Code) , fieldNum(TmpPaymentBalanceTotal_RU, CodeRef));