sql advisor issue

oracle 10GR2
Windows XP

Bonjour a tous
voila j'ai suivit les pas expliqués ici afin d'utiliser SQL TUNING ADVISORE:

http://www.databasejournal.com/featu...ng-Advisor.htm

mais voila, le output que j'obtient est celui ci:

Code:

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SQL> SELECT DBMS_SQLTUNE.REPORT_TUNING_TASK( 'NOM') FROM DUAL;
 
DBMS_SQLTUNE.REPORT_TUNING_TASK('NOM')
----------------------------------------------------------------------------------------------------
GENERAL INFORMATION SECTION
-------------------------------------------------------------------------------
Tuning Task Name                  : NOM
Tuning Task Owner                 : LUIS
Scope                             : COMPREHENSIVE
Time Limit(seconds)               : 30
Completion Status                 : COMPLETED
Started at                        : 11/06/2009 11:53:36
Completed at                      : 11/06/2009 11:53:54
Number of Statistic Findings      : 3
Number of Index Findings          : 1
 
DBMS_SQLTUNE.REPORT_TUNING_TASK('NOM')
----------------------------------------------------------------------------------------------------
 
-------------------------------------------------------------------------------
Schema Name: LUIS
SQL ID     : 4tjfytx70vcrb
SQL Text   : SELECT DISTINCT
                            TB1.NOMBRE,
                            TB1.APELLIDO1,
                            TB1.APELLIDO2,
                            TB1.NIF,
                            NULL,
                            NULL,
 
DBMS_SQLTUNE.REPORT_TUNING_TASK('NOM')
----------------------------------------------------------------------------------------------------
                            NULL,
 
 
SQL> SPOOL OFF

Voyez vous, a priori l'advisor trouve 3 modif a faire mais ca sort pas a l'ecran....une idée?
D'avance merci