-- Create table
create table MY_TEST 
(
    id    NUMBER (12) not null,
    name    VARCHAR2 (12) not null,
    today    TIMESTAMP (6) default SYSDATE
)
partition by range (today) interval(numtodsinterval(1,'day')) --月分區(qū)用month，年分區(qū)用year
(
    partition P_20230411 values less than (TO_DATE('2023-04-12 00:00:00,"SYYYY-MM-DD HH24:MI:SS"))
        tablespace TB_SAMS
        pctfree 10
        initrans 1
        maxtrans 255
        storage
        (
            initial 1M
            next 1M
            minextents 1
            maxextents unlimited
        )
);
- - Add comments to the table
comment on table MY_TEST
    is ‘測試表';
Add comments to the columns
comment on column MY_TEST.id
    is ‘主鍵id';
comment on column MY_TEST.name
    is ‘名稱';
comment on column MY_TEST.today
    is ‘時間';

- - Create/Recreate indexes
create index MY_TEST_INDEX on MY_TEST (id)
    tablespace TB_SAMS
    pctfree 10
    initrans 2
    maxtrans 255
    storage
    (
        initial 64K
        next 1M
        minextents 1
        maxextents unlimited
);
- -Grant/Revoke object privileges
grant select on MY_TEST to DBVIEW;

INSERT INTO MY_TEST VALUES (1,'xxc1',SYSDATE);
INSERT INTO MY_TEST VALUES (2,'xxc2'?SYSDATE+1);
INSERT INTO MY_TEST VAIUES (3,'xxc3',SYSDATE+2) ;

CREATE TABLE my_table (
  id NUMBER,
  name VARCHAR2(50),
  created_date DATE
)
PARTITION BY RANGE (created_date) INTERVAL (NUMTODSINTERVAL(1, 'DAY'))
(
  PARTITION p1 VALUES LESS THAN (TO_DATE('2022-01-01', 'YYYY-MM-DD'))
);

select sysdate + numtoyminterval(0.1, 'MONTH')  from dual;
2023-03-21 09:54:37

select sysdate + NumToYMInterval(1, 'MONTH') from dual;