PHP код:
QueryBuildDataSource qbds;
QueryBuildDataSource qbdsIS;
QueryBuildDataSource qbdsIR;
qry = new Query();
qbds = qry.addDataSource(TableNum(T1),"T1");
qbdsIS = qbds.addDataSource(TableNum(T2),"T2");
qbdsIS.relations(true);
qbdsIS.fetchMode(0);
qbdsIR = qbds.addDataSource(TableNum(T3),"T3");
qbdsIR.relations(true);
qbdsIR.fetchMode(0);
Все должно заработать
