Oracle创建分区表

创建分区表

插入数据时，表会依据数据内容自动添加分区

小时分区表

create table F_TEMP_H
(
  sdate                       DATE,
  city                        VARCHAR2(20),
  area                        VARCHAR2(20),
  name                        VARCHAR2(20),
  age                         NUMBER(20),
  score                       NUMBER(20)
)
TABLESPACE biaokongjianming
PARTITION BY RANGE (sdate)
INTERVAL(NUMTODSINTERVAL(1,'Hour'))
(  
 partition PART_INIT values less than (TIMESTAMP' 2022-01-01 00:00:00')
    NOLOGGING
    NOCOMPRESS 
    TABLESPACE biaokongjianming
)
NOCACHE
NOPARALLEL
MONITORING;

天分区表

create table F_TEMP_D
(
  sdate                       DATE,
  city                        VARCHAR2(20),
  area                        VARCHAR2(20),
  name                        VARCHAR2(20),
  age                         NUMBER(20),
  score                       NUMBER(20)
)
TABLESPACE biaokongjianming
PARTITION BY RANGE (sdate)
INTERVAL(NUMTODSINTERVAL(1,'Day'))
(  
 partition PART_INIT values less than (TIMESTAMP' 2022-01-01 00:00:00')
    NOLOGGING
    NOCOMPRESS 
    TABLESPACE biaokongjianming
)
NOCACHE
NOPARALLEL
MONITORING;

其他指令

1.添加分区语句

alter table f_temp_h add partition p2022061820 values ('2022-06-18 20:00:00');

2.删除分区语句

alter table f_temp_h drop partition p2022061820;
alter table F_VOLTE_VOICE_CI_H drop partition SYS_P37815;
alter table F_VOLTE_VOICE_CI_H drop partition SYS_P37835;

3.删除某分区的全部数据

alter table f_temp_h truncate partition p2022061820;