分区表的一些操作

一、创建表空间

create tablespace dinya_space01  datafile 'f:\user_data1.dbf' size 50m  autoextend on  next 50m maxsize 20480m  extent management local; 

create tablespace dinya_space02  datafile 'f:\user_data2.dbf' size 50m  autoextend on  next 50m maxsize 20480m  extent management local; 

create tablespace dinya_space03  datafile 'f:\user_data3.dbf' size 50m  autoextend on  next 50m maxsize 20480m  extent management local; 

create tablespace dinya_space04  datafile 'f:\user_data4.dbf' size 50m  autoextend on  next 50m maxsize 20480m  extent management local; 

 

二、删除表空间并删除文件

DROP   TABLESPACE   dinya_space01  INCLUDING   CONTENTS  and datafiles;

DROP   TABLESPACE   dinya_space02  INCLUDING   CONTENTS  and datafiles;

DROP   TABLESPACE   dinya_space03  INCLUDING   CONTENTS  and datafiles;

DROP   TABLESPACE   dinya_space04  INCLUDING   CONTENTS  and datafiles;

 

三、创建分区表

create table Partition_Test

(

PID number not null,

PITEM varchar2(200),

PDATA date not null

)

partition by range(PDATA)

(

partition part_t01 values less than(to_date('2004-01-01','yyyy-mm-dd')) tablespace dinya_space01,

partition part_t02 values less than(to_date('2008-01-01','yyyy-mm-dd')) tablespace dinya_space02

) ;

 

四、增加一个分区

alter table Partition_Test add partition part_t03 values less than (to_date('2010-01-01','yyyy-mm-dd')) tablespace dinya_space03;

 

五、向分区表中插入数据

insert into Partition_Test(PID,PITEM,PDATA) values(1,'2323',to_date('2009-01-05','yyyy-mm-dd')) ;

 

六、查询数据

select * from Partition_Test partition(part_t02) t where t.pid = 1 ;

 

七、更新数据

update Partition_Test partition(part_t03) t set t.PITEM = 'JZHUA' where t.pid = 1;

 

八、删除数据

delete from Partition_Test partition(part_t03) t where t.pid = 1;

  

九、删除分区

alter table Partition_Test drop partition part_t03;