st.addResultColumn(ref.newColumnReference(aVorname));
st.addResultColumn(ref.newColumnReference(aAktenId));
BooleanConstraint bc = st.getWhere().createEQ();
bc.addPart(st.getTableReference().newColumnReference(aFilter));
bc.addPart(pFilter);
Table t = st.createView((Table.Name) null);
SelectStatement st2 = sqlFactory.newSelectStatement();
st2.setTable(t);
SelectTableReference ref2 = st2.getSelectTableReference();
st2.addResultColumn(ref2.newColumnReference(t.getColumn("NUM")));