? How to insert table in nested Tables

CREATE or REPLACE TYPE sw_TY AS OBJECT
(

   swTitle        VARCHAR2(30),
   swCompany      VARCHAR2(40),
   swVersion      VARCHAR2(10)

CREATE or REPLACE TYPE sw_NT_Ref AS TABLE OF REF sw_TY;

CREATE TABLE allSoftware
(

   hwName      VARCHAR2(10),
   swTableRef     sw_NT_Ref

From Oracle documentation it appears that I can select from the table :

SELECT sw.COLUMN_TYPE.swVersion
  FROM THE (SELECT swTableRef

            FROM allsoftware
            WHERE hwName = "xyz"
           )sw

...... but I need to get data into the relation/table first