alter session set db_file_multiblock_read_count=64; 
CREATE UNIQUE INDEX PK_MNP_DWH_TC_ANOMALO ON MNP_DWH_TC_ANOMALO
(ID_RICHIESTA)
LOGGING
TABLESPACE TAB_DWH
PCTFREE    10
INITRANS   2
MAXTRANS   255
STORAGE    (
            INITIAL          64K
            NEXT             10M
            MINEXTENTS       1
            MAXEXTENTS       UNLIMITED
            PCTINCREASE      0
            FREELISTS        1
            FREELIST GROUPS  1
            BUFFER_POOL      DEFAULT
           )
PARALLEL 5;
alter index PK_MNP_DWH_TC_ANOMALO noparallel;