Trying to separate mst and dtl data while extracting from xml

Question

Any help is greatly appreciated.
What I try to get done is as follows:
My external xml file structure has a header and 2 sub-sections with eachsub-section having multiple nodes.
<BOM>
<Header>
<Article>123</Article>
<Description></Description>
<Language>E</Language>
<Plant>QUO</Plant>
<ValidFrom>20120424</ValidFrom>
<ValidTo></ValidTo>
<BaseQty>1000</BaseQty>
<BaseUoM>kg</BaseUoM>
<Price>212.51</Price>
<LCFfound>Yes</LCFfound>
<Ingredients>
<Ingredient>
<Counter>1</Counter>
<Component>G52000</Component>
<CompDescr>AGRICULTURAL SALT</CompDescr>
<Quantity>557.941</Quantity>
<UoM>kg</UoM>
<Percentage>55.794</Percentage>
<Available>Yes</Available>
<MinQty></MinQty>
<MaxQty></MaxQty>
</Ingredient>
<Ingredient>
<Counter>2</Counter>
<Component>G51000</Component>
<CompDescr>SYLVINITE</CompDescr>
<Quantity>273.501</Quantity>
<UoM>kg</UoM>
<Percentage>27.350</Percentage>
<Available>Yes</Available>
<MinQty></MinQty>
<MaxQty></MaxQty>
</Ingredient>
<Nutrients>
<Nutrient>
<Counter>1</Counter>
<CharDescr>WEIGHT</CharDescr>
<Description>WEIGHT</Description>
<Value>553.985</Value>
<Usage>3</Usage>
</Nutrient>
<Nutrient>
<Counter>2</Counter>
<CharDescr>PRICE</CharDescr>
<Description>PRICE</Description>
<Value>212.509</Value>
<Usage>4</Usage>
</Nutrient>
</Nutrients>
</Header>
</BOM>
I can't get the Ingredients/Ingredient and the Nutrients/Nutrient section separated out without loosing the relationship to the Header.
I use the following code to insert into my header table and that works fine:
insert into X_FM_HDR_IMP( ID
,PRODUCT
,DESCRIPTION
,LANG
,ORG
,FROM_DATE
,TO_DATE
,QTY
,UOM
,PRICE
,LCF_FOUND)
select x.*
from xmltable (XMLNAMESPACES(DEFAULT 'http://www.anysite.com/xmltable'),
'/BOM/Header'
passing xmltype(bfilename('XML_IMP_DIR', "testing.xml'), nls_charset_id('CHAR_CS'))
columns ID FOR ORDINALITY
,PRODUCT VARCHAR2(40) path 'Article'
,DESCRIPTION VARCHAR2(254) path 'Description'
,LANG VARCHAR2(5) path 'Language'
,ORG VARCHAR2(3) path 'Plant'
,FROM_DATE VARCHAR2(8) path 'ValidFrom'
,TO_DATE VARCHAR2(8) path 'ValidTo'
,QTY NUMBER path 'BaseQty'
,UOM VARCHAR2(3) path 'BaseUoM'
,PRICE NUMBER path 'Price'
,LCF_FOUND VARCHAR2(1) path 'LCFfound'
) as x;
I need to be able to either load the xml record into one table or preferably into 3 tables such that
<BOM>
<Header>
= record
and
<BOM>
<Header>
<Ingredients>
<Ingredient>
= record with 'Article' and 'Org' from <Header> as columns
and
<BOM>
<Header>
<Nutrients>
<Nutrient>
= record with 'Article' and 'Org' from <Header> as columns
The xml file structure cannot be changed because it is generated by a 3rd party.
Thanks again in advance for any insight on how to get this accomplished.

Answer 1

Using the following simplified structure :
create table header_imp (
  ID number
, PRODUCT     VARCHAR2(40)
, DESCRIPTION VARCHAR2(254)
, LANG        VARCHAR2(5)
, ORG         VARCHAR2(3)
create table ingredient_imp (
  Product      varchar2(40)
, org          VARCHAR2(3)
, Counter      number
, Component    varchar2(30)
, CompDescr    varchar2(254)
, Quantity     number
, UoM          varchar2(5)
create table nutrient_imp (
  Product      varchar2(40)
, org          VARCHAR2(3)
, Counter      number
, CharDescr    varchar2(254)
, Description  varchar2(254)
, Value        number
, Usage        number
);This multitable insert works for me :
insert all
  when hrn = 1 then into header_imp
           (id, product, description, lang, org)
    values (id, product, description, lang, org)
when irn = 1 then into ingredient_imp
           (product, org, counter, component, compdescr, quantity, uom)
    values (product, org, i_counter, component, compdescr, quantity, uom)
when nrn = 1 then into nutrient_imp
           (product, org, counter, chardescr, description, value, usage)
    values (product, org, n_counter, chardescr, n_description, value, usage)
select -- header info
       h.id
     , h.product
     , h.description
     , h.lang
     , h.org
     , rownum hrn
     -- ingredient info
     , i.counter i_counter
     , i.component
     , i.compdescr
     , i.quantity
     , i.uom
     , row_number() over(partition by irn order by null) irn
     -- nutrient info
     , n.counter n_counter
     , n.chardescr
     , n.description n_description
     , n.value
     , n.usage
     , row_number() over(partition by nrn order by null) nrn
from xmltable (
       '/BOM/Header'
       passing xmltype(bfilename('TEST_DIR', 'testing.xml'), nls_charset_id('CHAR_CS'))
       columns
         ID FOR ORDINALITY
       , PRODUCT     VARCHAR2(40)  path 'Article'
       , DESCRIPTION VARCHAR2(254) path 'Description'
       , LANG        VARCHAR2(5)   path 'Language'
       , ORG         VARCHAR2(3)   path 'Plant'
       , INGREDIENTS XMLType       path 'Ingredients'
       , NUTRIENTS   XMLType       path 'Nutrients'
     ) as h
  , xmltable(
      '/Ingredients/Ingredient'
      passing h.ingredients
      columns
        Counter      number        path 'Counter'
      , Component    varchar2(30)  path 'Component'
      , CompDescr    varchar2(254) path 'CompDescr'
      , Quantity     number        path 'Quantity'
      , UoM          varchar2(5)   path 'UoM'
      , irn          for ordinality
    ) i
  , xmltable(
      '/Nutrients/Nutrient'
      passing h.nutrients
      columns
        Counter      number        path 'Counter'
      , CharDescr    varchar2(254) path 'CharDescr'
      , Description  varchar2(254) path 'Description'
      , Value        number        path 'Value'
      , Usage        number        path 'Usage'
      , nrn          for ordinality
    ) n
SQL> select * from header_imp;
        ID PRODUCT         DESCRIPTION         LANG  ORG
         1 123                                 E     QUO
SQL> select * from ingredient_imp;
PRODUCT         ORG    COUNTER COMPONENT                      COMPDESCR                     QUANTITY UOM
123             QUO          1 G52000                         AGRICULTURAL SALT              557,941 kg
123             QUO          2 G51000                         SYLVINITE                      273,501 kg
SQL> select * from nutrient_imp;
PRODUCT         ORG    COUNTER CHARDESCR                      DESCRIPTION                 VALUE      USAGE
123             QUO          1 WEIGHT                         WEIGHT                    553,985          3
123             QUO          2 PRICE                          PRICE                     212,509          4