SelectTableReference ref2 = st2.getSelectTableReference();
st2.addResultColumn(ref2.newColumnReference(t.getColumn("NUM")));
Column aName2 = t.getColumn(aName.getName());
st2.addResultColumn(ref2.newColumnReference(aName2));
Column aVorname2 = t.getColumn(aVorname.getName());
st2.addResultColumn(ref2.newColumnReference(aVorname2));
st2.addResultColumn(ref2.newColumnReference(t.getColumn(aAktenId.getName())));
bc = st2.getWhere().createEQ();
bc.addPart(ref2.newColumnReference(t.getColumn("MINAVORNAME")));
Function f = st2.createFunction("MIN");