spool SM1683.log

ALTER TABLE mnp_richiesta_dup drop CONSTRAINT pk_richiesta_dup;
ALTER TABLE mnp_richiesta_dup ADD
CONSTRAINT pk_richiesta_dup
PRIMARY KEY(id_prog)
USING INDEX 
TABLESPACE TAB_IDX_MEDIUM
ENABLE
VALIDATE;
CREATE INDEX IDX_MNP_RICHIESTA_DUP_1 ON MNP_RICHIESTA_DUP
(NOME_FILE,ID_RICHIESTA)
NOLOGGING
TABLESPACE TAB_IDX_MEDIUM;

spool off