ORA-00911 error creating a view with PL/SQL

Question

Hello. Working with SQL Developer, I'm trying to write a procedure that creates a view.
After a successful compilation, each time I try to execute it I get an ORA-00911 error and I'm not able to find the reason.
Here's my code. Thanks in advance.
  CREATE OR REPLACE PROCEDURE "DWH_STAR"."STORICO_DATA" (
  DATA_INPUT IN VARCHAR2
)AS
BEGIN
  EXECUTE IMMEDIATE '
    CREATE OR REPLACE FORCE VIEW DWH_STAR.V_PORT_STOR_DATA (DATA_DESC, CLIENTE_KEY, PRODOTTO_KEY, AGENTE_KEY, TIPOLOGIA_KEY,
    NUM_ORDINE, NUM_UNITA, RICAVO_LORDO, RICAVO_NETTO, COSTO_STD_TOTALE, GROSS_PROFIT) AS
    SELECT
      dt.DATA_DESC,
      fv.CLIENTE_KEY,
      fv.PRODOTTO_KEY,
      fv.AGENTE_KEY,
      fv.TIPOLOGIA_KEY,
      fv.NUM_ORDINE,
      SUM (NUM_UNITA) NUM_UNITA,
      SUM (RICAVO_LORDO) RICAVO_LORDO,
      SUM (RICAVO_NETTO) RICAVO_NETTO,
      SUM (COSTO_STD_TOTALE) COSTO_STD_TOTALE,
      SUM (GROSS_PROFIT) GROSS_PROFIT
    FROM
      F_VENDUTO fv, D_TEMPO dt
    WHERE
      fv.TEMPO_KEY = dt.TEMPO_KEY
      AND TO_NUMBER(TO_CHAR(dt.DATA_DESC,''YYYYMMDD'')) <=' || DATA_INPUT ||'
    GROUP BY
      fv.CLIENTE_KEY,
      fv.PRODOTTO_KEY,
      fv.AGENTE_KEY,
      fv.TIPOLOGIA_KEY,
      fv.NUM_ORDINE,
      dt.DATA_DESC
    ORDER BY
      dt.DATA_DESC,
      fv.CLIENTE_KEY,
      fv.PRODOTTO_KEY,
      fv.AGENTE_KEY,
      fv.TIPOLOGIA_KEY,
      fv.NUM_ORDINE;
    UNION
    SELECT
      dt.DATA_DESC,
      fs.CLIENTE_KEY,
      fs.PRODOTTO_KEY,
      fs.AGENTE_KEY,
      fs.TIPOLOGIA_KEY,
      fs.NUM_ORDINE,
      - SUM (NUM_UNITA) NUM_UNITA,
      - SUM (RICAVO_LORDO) RICAVO_LORDO,
      - SUM (RICAVO_NETTO) RICAVO_NETTO,
      - SUM (COSTO_STD_TOTALE) COSTO_STD_TOTALE,
      - SUM (GROSSO_PROFIT) GROSS_PROFIT
    FROM
      F_SPEDITO fs, D_TEMPO dt
    WHERE
      (fs.CAUSA_RESO_KEY = 0
       AND fs.TEMPO_KEY = dt.TEMPO_KEY
       AND TO_NUMBER(TO_CHAR(dt.DATA_DESC,''YYYYMMDD'')) <=' || DATA_INPUT ||'
    GROUP BY
      fs.CLIENTE_KEY,
      fs.PRODOTTO_KEY,
      fs.AGENTE_KEY,
      fs.TIPOLOGIA_KEY,
      fs.NUM_ORDINE,
      dt.DATA_DESC
    ORDER BY
      dt.DATA_DESC,
      fs.CLIENTE_KEY,
      fs.PRODOTTO_KEY,
      fs.AGENTE_KEY,
      fs.TIPOLOGIA_KEY,
      fs.NUM_ORDINE
END;

Answer 1

remove the order by and semi-colon (;) from the first select. I hope you know that union operator needs the same set of columns to be selected.
But try avoid creating objects on the fly unless and until it's absolutely necessary and unavoidable.
Regards
Raj
Edited by: R.Subramanian on Jun 21, 2010 7:52 AM
Edited by: R.Subramanian on Jun 21, 2010 7:53 AM