LOB fields and group

Question

Hello all!...
if I have a TABLE(FunctionName())'s dataset, where it returns three fields which they are a NUMBER, a VARCHAR and a BLOB, and a table TBL01 and I create a view LIKE:
CREATE OR REPLACE VIEW vw_detail
rs.ID,
rs.DESCRIPTION,
rs.DOCUMENT,
TBL01.AUTHOR,
TBL01.DATE_CREATION
AS
SELECT
FROM
TABLE(FunctionName()) rs
JOIN TBL01 ON
(TBL01.FK_RS = rs.ID)
GROUP BY
rs.ID,
rs.DESCRIPTION,
rs.DOCUMENT,
TBL01.AUTHOR,
TBL01.DATE_CREATION
ORDER BY rs.ID DESC;
why it returns me this following error?
ORA-00932: inconsistent datatypes: expected -, got BLOB
I would create that view so in the next step I'd SELECT directly the VIEW to obtain whatever I want...uhm maybe is there a different way to implement this CREATE VIEW?....

Answer 1

You could perhaps try something in this style... +(untested)+
CREATE OR REPLACE VIEW vw_detail (FIELD1,FIELD2,FIELD3,FIELD4,FIELD5) AS
  WITH rs AS (SELECT * FROM TABLE(FunctionName()))
  SELECT rs.ID,
         rs.DESCRIPTION,
         rs.DOCUMENT,
         TBL01.AUTHOR,
  FROM   rs
         JOIN TBL01 ON (TBL01.FK_RS = rs.ID)
  WHERE  (rs.ID,rs.DESCRIPTION,TBL01.AUTHOR,TBL1.DATE_CREATION) =
                                      (SELECT rs.ID
                                              rs.DESCRIPTION,
                                              TBL01.AUTHOR,
                                            , MAX(DATE_CREATION)
                                       FROM   TBL01
                                              JOIN rs ON (TBL01.FK_RS = rs.ID)
                                       GROUP BY
                                              rs.ID,
                                              rs.DESCRIPTION,
                                              TBL01.AUTHOR,
  ORDER BY rs.ID DESC;Edited by: BluShadow on Sep 5, 2008 9:14 AM