Help in sql xml

Question

sorry i am new in the oracle xmldb features.
i need help with a select statement on a xmltype column.
my table:
CREATE TABLE ESHOP_CUSTOMER_BASKET
BSK_ID INTEGER,
BSK_CUSTOMER_GID VARCHAR2(10 BYTE),
BSK_STATUS INTEGER DEFAULT 0,
BSK_ORDER_DETAIL XMLTYPE,
BSK_SESSION_ID VARCHAR2(50 BYTE),
BSK_DAT_ERST DATE DEFAULT sysdate,
BSK_VALID_TO DATE
In the colum bsk_order_detail are xml documents like this:
<?xml version="1.0" encoding="UTF-8"?>
<shoppingcart>
<master>
<art_id>278</art_id>
<art_name>04/30/2007 Event XYZ</art_name>
<description>04/30/2007 Event XYZ</description>
<quantity>1</quantity>
<onetime>199</onetime>
<permanent>0</permanent>
<currency>EUR</currency>
<child>
<art_id>19</art_id>
<art_name>AKZENT Congresshotel</art_name>
<description>AKZENT Congresshotel</description>
<quantity>2</quantity>
<onetime>90</onetime>
<permanent>0</permanent>
<currency>EUR</currency>
</child>
<child>
<art_id>20</art_id>
<art_name>Breakfast</art_name>
<description>Breakfast</description>
<quantity>2</quantity>
<onetime>20</onetime>
<permanent>0</permanent>
<currency>EUR</currency>
</child>
</master>
</shoppingcart>
I need a view that give me a listing of art_id and quantity:
art_id | quantity
278 | 1
19 | 2
20 | 2
Can someone help me with this?
thanks markus

Answer 1

I still don't like the solution, but last week I couldn't find a better solution like the one you are suggesting:
SQL> CREATE TABLE ESHOP_CUSTOMER_BASKET
  2  (
  3  BSK_ID INTEGER,
  4  BSK_CUSTOMER_GID VARCHAR2(10 BYTE),
  5  BSK_STATUS INTEGER DEFAULT 0,
  6  BSK_ORDER_DETAIL XMLTYPE,
  7  BSK_SESSION_ID VARCHAR2(50 BYTE),
  8  BSK_DAT_ERST DATE DEFAULT sysdate,
  9  BSK_VALID_TO DATE
10  );
Table created.
SQL> insert into ESHOP_CUSTOMER_BASKET (bsk_order_detail)
  2  values
  3  ('<?xml version="1.0" encoding="UTF-8"?>
  4  <shoppingcart>
  5  <master>
  6  <art_id>278</art_id>
  7  <art_name>04/30/2007 Event XYZ</art_name>
  8  <description>04/30/2007 Event XYZ</description>
  9  <quantity>1</quantity>
10  <onetime>199</onetime>
11  <permanent>0</permanent>
12  <currency>EUR</currency>
13  <child>
14  <art_id>19</art_id>
15  <art_name>AKZENT Congresshotel</art_name>
16  <description>AKZENT Congresshotel</description>
17  <quantity>2</quantity>
18  <onetime>90</onetime>
19  <permanent>0</permanent>
20  <currency>EUR</currency>
21  </child>
22  <child>
23  <art_id>20</art_id>
24  <art_name>Breakfast</art_name>
25  <description>Breakfast</description>
26  <quantity>2</quantity>
27  <onetime>20</onetime>
28  <permanent>0</permanent>
29  <currency>EUR</currency>
30  </child>
31  </master>
32  </shoppingcart>')
33  ;
SQL> select art1.* from
  2  ESHOP_CUSTOMER_BASKET,
  3  xmltable
  4  (
  5  '/shoppingcart/master'
  6  passing bsk_order_detail
  7  columns
  8  artid varchar2(10) path '/master/art_id',
  9  artqty number path '/master/quantity'
10  ) art1
11  union
12  select art1.* from
13  ESHOP_CUSTOMER_BASKET,
14  xmltable
15  (
16  '/shoppingcart/master/child'
17  passing bsk_order_detail
18  columns
19  artid varchar2(10) path '/child/art_id',
20  artqty number path '/child/quantity'
21  ) art1
22  ;
ARTID         ARTQTY
19                 2
20                 2
278                1
3 rows selected.