--范围分区
create table person(
id int,
name varchar2(20),
birth date,
sex char(2)
)
partition by range (birth) --根据年龄分区
(
partition p1 values less than (to_date('19950517','yyyymmdd')),
partition p2 values less than (to_date('20000517','yyyymmdd')),
partition p3 values less than (to_date('20100517','yyyymmdd')),
partition p4 values less than (maxvalue)
);
--列表分区
create table person1(
id int,
name varchar2(20),
birth date,
sex char(2)
)
partition by list (sex) --根据性别分区
(
partition l1 values('男'),
partition l2 values('女'),
partition l3 values(default)
);
--hash分区
--不指定分区名
create table person2(
id int,
name varchar2(20),
birth date,
sex char(2)
)
partition by hash (id)
partitions 2 store in (system,users);
--指定分区名
create table person3(
id int,
name varchar2(20),
birth date,
sex char(2)
)
partition by hash (id)
(
partition h1,
partition h2,
partition h3
);
--复合分区
--范围——列表
create table person4(
id int,
name varchar2(20),
birth date,
sex char(2)
)
partition by range (birth)
subpartition by list (sex)
subpartition template(
subpartition sp1 values ('男'),
subpartition sp2 values ('女'),
subpartition sp3 values (default)
)(
partition p5 values less than (to_date(19950517,'yyyyMMdd')),
partition p6 values less than (to_date(20000517,'yyyyMMdd')),
partition p7 values less than (to_date(20100517,'yyyyMMdd')),
partition p8 values less than (maxvalue)
);

--范围——hash
create table person5(
id int,
name varchar2(20),
birth date,
sex char(2)
)
partition by range (birth)
subpartition by hash(id)
subpartition template(
subpartition sp4,
subpartition sp5,
subpartition sp6
)(
partition p9 values less than (to_date(19950517,'yyyyMMdd')),
partition p10 values less than (to_date(20000517,'yyyyMMdd')),
partition p11 values less than (to_date(20100517,'yyyyMMdd')),
partition p12 values less than (maxvalue)
);

--查询
--相关字典表:
--select * from user_objects where object_name ='表名';
--select * from user_tables where table_name = '表名';
--select * from user_tab_partitions where table_name = '表名';
--select * from user_tab_subpartitions where table_name = '表名';

--查询分区
select * from person partition (p2);
select * from person1 partition (l2);
select * from person2 partition (SYS_P548);
select * from person3 partition (h2);
select * from person4 subpartition (p7_sp2);
select * from person5 subpartition (p11_sp5);

--删除表分区
--alter table 表名 drop partition 分区名;

--创建序列
create sequence seq_partition
minvalue 1
maxvalue 500
increment by 1;

--插入数据
insert into person values (seq_partition.nextval,'吕布',to_date('19900517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'赵云',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'关羽',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'黄忠',to_date('19900517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'张辽',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'张飞',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'高顺',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'马超',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'甘宁',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'太史慈',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'孙策',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'黄盖',to_date('19900517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'典韦',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'许褚',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'周泰',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'凌统',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'郭嘉',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'贾诩',to_date('19900517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'庞统',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'周瑜',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'戏忠',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'田丰',to_date('19900517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'沮涭',to_date('19900517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'陈宫',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'诸葛亮',to_date('19950517','yyyymmdd'),'男');
insert into person values (seq_partition.nextval,'貂蝉',to_date('20000517','yyyymmdd'),'女');
insert into person values (seq_partition.nextval,'蔡琰',to_date('20000517','yyyymmdd'),'女');
insert into person values (seq_partition.nextval,'甄宓',to_date('20000517','yyyymmdd'),'女');
insert into person values (seq_partition.nextval,'孙仁',to_date('20000517','yyyymmdd'),'女');
insert into person values (seq_partition.nextval,'黄月英',to_date('20000517','yyyymmdd'),'女');
insert into person values (seq_partition.nextval,'甘倩',to_date('20000517','yyyymmdd'),'女');
insert into person values (seq_partition.nextval,'乔莹',to_date('20000517','yyyymmdd'),'女');
insert into person values (seq_partition.nextval,'乔霜',to_date('20000517','yyyymmdd'),'女');
insert into person values (seq_partition.nextval,'伏寿',to_date('20000517','yyyymmdd'),'女');

--插入数据
insert into person1 values (seq_partition.nextval,'吕布',to_date('19900517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'赵云',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'关羽',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'黄忠',to_date('19900517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'张辽',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'张飞',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'高顺',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'马超',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'甘宁',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'太史慈',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'孙策',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'黄盖',to_date('19900517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'典韦',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'许褚',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'周泰',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'凌统',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'郭嘉',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'贾诩',to_date('19900517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'庞统',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'周瑜',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'戏忠',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'田丰',to_date('19900517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'沮涭',to_date('19900517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'陈宫',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'诸葛亮',to_date('19950517','yyyymmdd'),'男');
insert into person1 values (seq_partition.nextval,'貂蝉',to_date('20000517','yyyymmdd'),'女');
insert into person1 values (seq_partition.nextval,'蔡琰',to_date('20000517','yyyymmdd'),'女');
insert into person1 values (seq_partition.nextval,'甄宓',to_date('20000517','yyyymmdd'),'女');
insert into person1 values (seq_partition.nextval,'孙仁',to_date('20000517','yyyymmdd'),'女');
insert into person1 values (seq_partition.nextval,'黄月英',to_date('20000517','yyyymmdd'),'女');
insert into person1 values (seq_partition.nextval,'甘倩',to_date('20000517','yyyymmdd'),'女');
insert into person1 values (seq_partition.nextval,'乔莹',to_date('20000517','yyyymmdd'),'女');
insert into person1 values (seq_partition.nextval,'乔霜',to_date('20000517','yyyymmdd'),'女');
insert into person1 values (seq_partition.nextval,'伏寿',to_date('20000517','yyyymmdd'),'女');

--插入数据
insert into person2 values (seq_partition.nextval,'吕布',to_date('19900517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'赵云',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'关羽',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'黄忠',to_date('19900517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'张辽',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'张飞',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'高顺',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'马超',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'甘宁',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'太史慈',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'孙策',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'黄盖',to_date('19900517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'典韦',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'许褚',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'周泰',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'凌统',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'郭嘉',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'贾诩',to_date('19900517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'庞统',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'周瑜',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'戏忠',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'田丰',to_date('19900517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'沮涭',to_date('19900517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'陈宫',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'诸葛亮',to_date('19950517','yyyymmdd'),'男');
insert into person2 values (seq_partition.nextval,'貂蝉',to_date('20000517','yyyymmdd'),'女');
insert into person2 values (seq_partition.nextval,'蔡琰',to_date('20000517','yyyymmdd'),'女');
insert into person2 values (seq_partition.nextval,'甄宓',to_date('20000517','yyyymmdd'),'女');
insert into person2 values (seq_partition.nextval,'孙仁',to_date('20000517','yyyymmdd'),'女');
insert into person2 values (seq_partition.nextval,'黄月英',to_date('20000517','yyyymmdd'),'女');
insert into person2 values (seq_partition.nextval,'甘倩',to_date('20000517','yyyymmdd'),'女');
insert into person2 values (seq_partition.nextval,'乔莹',to_date('20000517','yyyymmdd'),'女');
insert into person2 values (seq_partition.nextval,'乔霜',to_date('20000517','yyyymmdd'),'女');
insert into person2 values (seq_partition.nextval,'伏寿',to_date('20000517','yyyymmdd'),'女');

--插入数据
insert into person3 values (seq_partition.nextval,'吕布',to_date('19900517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'赵云',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'关羽',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'黄忠',to_date('19900517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'张辽',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'张飞',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'高顺',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'马超',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'甘宁',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'太史慈',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'孙策',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'黄盖',to_date('19900517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'典韦',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'许褚',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'周泰',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'凌统',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'郭嘉',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'贾诩',to_date('19900517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'庞统',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'周瑜',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'戏忠',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'田丰',to_date('19900517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'沮涭',to_date('19900517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'陈宫',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'诸葛亮',to_date('19950517','yyyymmdd'),'男');
insert into person3 values (seq_partition.nextval,'貂蝉',to_date('20000517','yyyymmdd'),'女');
insert into person3 values (seq_partition.nextval,'蔡琰',to_date('20000517','yyyymmdd'),'女');
insert into person3 values (seq_partition.nextval,'甄宓',to_date('20000517','yyyymmdd'),'女');
insert into person3 values (seq_partition.nextval,'孙仁',to_date('20000517','yyyymmdd'),'女');
insert into person3 values (seq_partition.nextval,'黄月英',to_date('20000517','yyyymmdd'),'女');
insert into person3 values (seq_partition.nextval,'甘倩',to_date('20000517','yyyymmdd'),'女');
insert into person3 values (seq_partition.nextval,'乔莹',to_date('20000517','yyyymmdd'),'女');
insert into person3 values (seq_partition.nextval,'乔霜',to_date('20000517','yyyymmdd'),'女');
insert into person3 values (seq_partition.nextval,'伏寿',to_date('20000517','yyyymmdd'),'女');

--插入数据
insert into person4 values (seq_partition.nextval,'吕布',to_date('19900517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'赵云',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'关羽',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'黄忠',to_date('19900517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'张辽',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'张飞',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'高顺',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'马超',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'甘宁',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'太史慈',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'孙策',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'黄盖',to_date('19900517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'典韦',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'许褚',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'周泰',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'凌统',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'郭嘉',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'贾诩',to_date('19900517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'庞统',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'周瑜',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'戏忠',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'田丰',to_date('19900517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'沮涭',to_date('19900517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'陈宫',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'诸葛亮',to_date('19950517','yyyymmdd'),'男');
insert into person4 values (seq_partition.nextval,'貂蝉',to_date('20000517','yyyymmdd'),'女');
insert into person4 values (seq_partition.nextval,'蔡琰',to_date('20000517','yyyymmdd'),'女');
insert into person4 values (seq_partition.nextval,'甄宓',to_date('20000517','yyyymmdd'),'女');
insert into person4 values (seq_partition.nextval,'孙仁',to_date('20000517','yyyymmdd'),'女');
insert into person4 values (seq_partition.nextval,'黄月英',to_date('20000517','yyyymmdd'),'女');
insert into person4 values (seq_partition.nextval,'甘倩',to_date('20000517','yyyymmdd'),'女');
insert into person4 values (seq_partition.nextval,'乔莹',to_date('20000517','yyyymmdd'),'女');
insert into person4 values (seq_partition.nextval,'乔霜',to_date('20000517','yyyymmdd'),'女');
insert into person4 values (seq_partition.nextval,'伏寿',to_date('20000517','yyyymmdd'),'女');

--插入数据
insert into person5 values (seq_partition.nextval,'吕布',to_date('19900517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'赵云',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'关羽',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'黄忠',to_date('19900517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'张辽',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'张飞',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'高顺',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'马超',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'甘宁',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'太史慈',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'孙策',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'黄盖',to_date('19900517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'典韦',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'许褚',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'周泰',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'凌统',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'郭嘉',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'贾诩',to_date('19900517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'庞统',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'周瑜',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'戏忠',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'田丰',to_date('19900517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'沮涭',to_date('19900517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'陈宫',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'诸葛亮',to_date('19950517','yyyymmdd'),'男');
insert into person5 values (seq_partition.nextval,'貂蝉',to_date('20000517','yyyymmdd'),'女');
insert into person5 values (seq_partition.nextval,'蔡琰',to_date('20000517','yyyymmdd'),'女');
insert into person5 values (seq_partition.nextval,'甄宓',to_date('20000517','yyyymmdd'),'女');
insert into person5 values (seq_partition.nextval,'孙仁',to_date('20000517','yyyymmdd'),'女');
insert into person5 values (seq_partition.nextval,'黄月英',to_date('20000517','yyyymmdd'),'女');
insert into person5 values (seq_partition.nextval,'甘倩',to_date('20000517','yyyymmdd'),'女');
insert into person5 values (seq_partition.nextval,'乔莹',to_date('20000517','yyyymmdd'),'女');
insert into person5 values (seq_partition.nextval,'乔霜',to_date('20000517','yyyymmdd'),'女');
insert into person5 values (seq_partition.nextval,'伏寿',to_date('20000517','yyyymmdd'),'女');

oracle partition 分区的更多相关文章

  1. Oracle Partition 分区详细总结

    此文从以下几个方面来整理关于分区表的概念及操作:        1.表空间及分区表的概念        2.表分区的具体作用        3.表分区的优缺点        4.表分区的几种类型及操作 ...

  2. Oracle子分区(sub partition)操作

    要重新定义大量分区表. 首先看 SQL Reference 大致了解了 Oracle 的分区修改操作.Alter table 语句的alter_table_partitioning 子句可以分为以下几 ...

  3. Oracle 表分区partition(http://love-flying-snow.iteye.com/blog/573303)

    http://www.jb51.net/article/44959.htm Oracle表分区分为四种:范围分区,散列分区,列表分区和复合分区. 一:范围分区 就是根据数据库表中某一字段的值的范围来划 ...

  4. oracle表分区详解

    原文来自:http://www.cnblogs.com/leiOOlei/archive/2012/06/08/2541306.html oracle表分区详解 从以下几个方面来整理关于分区表的概念及 ...

  5. 转:Oracle表分区

    Oracle表分区分为四种:范围分区,散列分区,列表分区和复合分区. 一:范围分区 就是根据数据库表中某一字段的值的范围来划分分区,例如: 1. create table graderecord 2. ...

  6. Oracle表分区[转]

    废话少说,直接讲分区语法. Oracle表分区分为四种:范围分区,散列分区,列表分区和复合分区. 一:范围分区 就是根据数据库表中某一字段的值的范围来划分分区,例如: create table gra ...

  7. 详解Oracle partition分区表

    随着表中行数的增多,管理和性能性能影响也将随之增加.备份将要花费更多时间,恢复也将 要花费更说的时间,对整个数据表的查询也将花费更多时间.通过把一个表中的行分为几个部分,可以减少大型表的管理和性能问题 ...

  8. oracle表分区的,分区操作,分区查询,子分区查询

    一.摘要 有关表分区的一些维护性操作: 注:分区根据具体情况选择. 表分区有以下优点: 1.数据查询:数据被存储到多个文件上,减少了I/O负载,查询速度提高. 2.数据修剪:保存历史数据非常的理想. ...

  9. oracle partition table 分区表详解

    Oracle partition table 分区表详解 分区表就是通过使用分区技术,将一张大表,拆分成多个表分区(独立的segment),从而提升数据访问的性能,以及日常的可维护性.分区表中,每个分 ...

随机推荐

  1. ControlTemplate in WPF ——ScrollBar

    <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" x ...

  2. 工具栏对象GUI Status 与GUI Title

    GUI Status 与GUI Title用于自定义工具栏按钮及Report程序标题栏显示内容, 可以通过se41\SE80或直接SE38中展开对象列表进行相关操作. 如下是在SE38里,点击[显示物 ...

  3. linux使用df查看硬盘使用率

    df 是来自于coreutils 软件包,系统安装时,就自带的:我们通过这个命令可以查看磁盘的使用情况以及文件系统被挂载的位置: df -lh [root@iZ28u0bdecbZ ~]# df -h ...

  4. epoll 性能分析(解决占用CPU 过高问题)

    针对自己写的一个服务器网络引擎Engine 文章后面附上源码 使用epoll  刚刚开始时候发现占用CPU 特别高,但是网络引擎里面基本没干什么事,不应该有这么高的CPU,一直不解, 于是自己慢慢的分 ...

  5. MyView 的无奈问题

    这不是为难我吗这种问题  据说这是内置库!!!!!可是: 找不到呀!!!!!!!!!! 后期补充: 是因为我的一个目录名字起了冲突

  6. Zookeeper 假死脑裂

    该问题就是服务集群因为网络震荡导致的多主多从问题,解决方案就是设置服务切换的超时时间,但也同时会导致无法达到高可用的要求.

  7. 【GNN】图神经网络小结

    图神经网络小结 图神经网络小结 图神经网络分类 GCN: 由谱方法到空域方法 GCN概述 GCN的输出机制 GCN的不同方法 基于谱方法的GCN 初始 切比雪夫K阶截断: ChebNet 一阶Cheb ...

  8. 【Qt开发】在QLabel已经显示背景图片后绘制图形注意事项

    主要是要解决图形覆盖的问题,通常的办法就是对QLabel进行子类化,并重载函数: void myLabel::paintEvent(QPaintEvent *event)   {       QLab ...

  9. poj1061(扩展欧基里德定理)

    题目链接:https://vjudge.net/problem/POJ-1061 题意:在一个首位相接的坐标轴上,A.B开始时分别位于X,Y处,每个单位时间向右移动m,n米,问是否能相遇,坐标轴长L. ...

  10. [Python3] 031 常用模块 shutil & zipfile

    目录 shutil 1. shutil.copy() 2. shutil.copy2() 3. shutil.copyfile() 4. shutil.move() 5. 归档 5.1 shutil. ...