oracle分区表学习及应用

发表于:2007-05-25来源:作者:点击数: 标签:
-- Create table(创建分区表) create table BILL_MONTHFEE_ZERO ( SERV_ID NUMBER(20) not null, BILLING_CYCLE_MONTH NUMBER(6) not null, DATE_TYPE NUMBER(1), A CC _NBR VARCHAR2(80) ) partition by range (BILLING_CYCLE_MONTH) (partition p_200407 v
-- Create table(创建分区表)
create table BILL_MONTHFEE_ZERO
(
  SERV_ID             NUMBER(20) not null,
  BILLING_CYCLE_MONTH NUMBER(6) not null,
  DATE_TYPE           NUMBER(1),
  ACC_NBR             VARCHAR2(80)
)
 partition by range (BILLING_CYCLE_MONTH)
  (partition p_200407 values less than (200407)
    tablespace TS_ZIKEN
      storage(initial 100k next 100k minextents 1 maxextents unlimited pctincrease 0),
   partition p_200408 values less than (200408)
    tablespace TS_ZIKEN
      storage(initial 100k next 100k minextents 1 maxextents unlimited pctincrease 0))
      ;
create index idx_bill_monthfee_zero_idx01 on bill_monthfee_zero(billing_cycle_month)
tablespace TS_ZIKEN_idx
storage(initial 100k next 100k minextents 1 maxextents unlimited pctincrease 0) nologging;
grant all on bill_monthfee_zero to dxsq_dev;
 
--增加分区表
 
alter table BILL_MONTHFEE_ZERO add Partition p_200409
values less than (200409) tablespace ts_ziken;

--删除一分区
alter table part_tbl drop Partition part_tbl_08;
 
--将一个分区分为两个分区
alter table bill_monthfee_zero split Partition p_200409 at (200409)
into (Partition p_200409_1 tablespace ts_ziken,
Partition p_200409_2 tablespace ts_ziken_idx);
 
MILY: 宋体; mso-hansi-font-family: 'Courier New'; mso-bidi-font-family: 'Courier New'; mso-ansi-language: ZH-CN; mso-font-kerning: 0pt; mso-ascii-font-family: 'Courier New'">--合并分区
ALTER TABLE bill_monthfee_zero
  
MERGE PARTITIONS p_200408, p_200409 INTO PARTITION p_all
 
--将分区改名
alter table bill_monthfee_zero rename Partition p_200408 to p_fee_200408
 
--将分区改表空间
alter table bill_monthfee_zero move Partition p_200409
tablespace ts_ziken_01 nologging
 
--查询特定分区
select count(*) from BILL_MONTHFEE_ZERO partition (p_200407);
 
--添加数据
insert into bill_monthfee_zero select * from bill_monthfee_zero partition (p_200407)
 
--分区表的导出
userid=dxsq/teledoone@jndxsq154
buffer=102400
tables=bill_monthfee:P_200401,
file=E:\exp_para\exp_dxsq_tables.dmp
log=E:\exp_para\exp_dxsq_tables.log
 
 
技巧:
删除表中一个字段:
alter table bill_monthfee_zero set unused column date_type;
添加一个字段:alter table bill_monthfee_zero add date_type number(1);

原文转自:http://www.ltesting.net