分割槽表的一些操作

一、建立表空間

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、刪除表空間並刪除檔案

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、建立分割槽表

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、增加乙個分割槽

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

五、向分割槽表中插入資料

insert into partition_test(pid,pitem,pdata) values(1,'2323',to_date('2009-01-05','yyyy-mm-dd')) ;

六、查詢資料

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

七、更新資料

update partition_test partition(part_t03) t set t.pitem = 'jzhua' where t.pid = 1;

八、刪除資料

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

九、刪除分割槽

alter table partition_test drop partition part_t03;