-- 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);    
--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); 
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