Apex_collection.create_collection_from_query, dbms_Sql and ORA-29470 on 11g

Question

Hi there,
I was very happy to know that you can pass a DBMS_SQL cursor to the procedure apex_collection.create_collection_from_query but my contentment lasted only until I actually tried it.
I am using Apex 4.0.2.00.06 on DB 11.1.0.7.0 and when I tried to run a simple page based on it I got:
ORA-20104: create_collection_from_query Error:
ORA-20104: create_collection_from_query ExecErr:
ORA-29470: Effective userid or roles are not the same as when cursor was parsedThis post explains the reason why:
11g Security Error: wwv_flow_collection.create_collection_from_query_b
As it is an old post which doesn't mention the Apex version, I was wondering if there have been any new workarounds for this issue?
If not, does it mean that functionality is useless in 11g? What about people that for one reason or another has been using it (not my case fortunately)?
Thanks
Luis

Answer 1

Luis,
for your example in the other post it isn't necessary to use a cursor, but you can use a SQL Statement in a String like this
APEX_COLLECTION.CREATE_COLLECTION_FROM_QUERY
  ( p_collection_name => 'MY_NEW_COLLECTION'
  , p_query      =>
'    SELECT EXTRACTVALUE
             ( VALUE(USERXML)
             , ''/User/Mail''
             , ''xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" ''
      FROM APEX_COLLECTIONS COLL
         , TABLE
             ( XMLSEQUENCE
                 ( EXTRACT
                     ( XMLTYPE.createXML(CLOB001)
                     , ''/env:Envelope/env:Body/getUserInfo/User''
                     , ''xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" '
             ) USERXML
     WHERE COLLECTION_NAME = 'MY_WS_COLL'
...brgds,
Peter
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