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oracle分區表學習及應用
瀏覽:3日期:2023-11-17 11:30:58
-- Create table(創建分區表)create table BILL_MONTHFEE_ZERO( SERV_ID;;NUMBER(20) not null, BILLING_CYCLE_MONTH NUMBER(6) not null, ; DATE_TYPENUMBER(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_idxstorage(initial 100k next 100k minextents 1 maxextents unlimited pctincrease 0) nologging;grant all on bill_monthfee_zero to dxsq_dev;;--增加分區表;alter table BILL_MONTHFEE_ZERO add Partition p_200409values less than (200409) tablespace ts_ziken;--刪除一分區alter table part_tbl drop Partition part_tbl_08;;--將一個分區分為兩個分區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); ;--合并分區ALTER TABLE;bill_monthfee_zero MERGE PARTITIONS p_200408, p_200409 INTO PARTITION p_all;--將分區改名alter table;bill_monthfee_zero rename Partition;p_200408 to p_fee_200408;--將分區改表空間alter table;bill_monthfee_zero move Partition p_200409tablespace;ts_ziken_01 nologging;--查詢特定分區select count(*) from BILL_MONTHFEE_ZERO partition (p_200407);;--添加數據insert into bill_monthfee_zero select * from bill_monthfee_zero partition (p_200407);--分區表的導出userid=dxsq/teledoone@jndxsq154buffer=102400tables=bill_monthfee:P_200401,file=E:eXP_paraexp_dxsq_tables.dmplog=E:exp_paraexp_dxsq_tables.log;;技巧:刪除表中一個字段:alter table bill_monthfee_zero set unused column date_type;添加一個字段:alter table bill_monthfee_zero add date_type number(1);
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