时间范围分区自动新建

Posted xuzhong86

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前段时间做了个分区功能,表结构如下:

-- Create table
create table SUM_DUTY
(
  oid         VARCHAR2(36) default sys_guid() not null,
  entry_id    VARCHAR2(18) not null,
  manual_no   VARCHAR2(12),
  p_date      DATE,
  i_e_flag    VARCHAR2(1),
  traf_mode   VARCHAR2(1),
  trade_code  VARCHAR2(10),
  trade_name  VARCHAR2(255),
  trade_mode  VARCHAR2(4),
  cut_mode    VARCHAR2(3),
  tax_type    VARCHAR2(1),
  real_tax    NUMBER(19,2),
  center_code VARCHAR2(4),
  center_name VARCHAR2(255),
  scene_code  VARCHAR2(4),
  scene_name  VARCHAR2(255),
  manual_type VARCHAR2(4),
  inserttime  DATE default SYSDATE
)
partition by range (P_DATE)
subpartition by list (MANUAL_TYPE)
(
  partition SUM_DUTY_2014_01 values less than (TO_DATE( 2014-01-01 00:00:00, SYYYY-MM-DD HH24:MI:SS, NLS_CALENDAR=GREGORIAN))
  (
    subpartition SUM_DUTY_2014_01_MANUAL_B values (B23),
    subpartition SUM_DUTY_2014_01_MANUAL_C values (C23),
    subpartition SUM_DUTY_2014_01_MANUAL_E values (E23),
    subpartition SUM_DUTY_2014_01_MANUAL_H values (H23),
    subpartition SUM_DUTY_2014_01_MANUAL_L values (L23),
    subpartition SUM_DUTY_2014_01_MANUAL_K values (K23),
    subpartition SUM_DUTY_2014_01_MANUAL_F values (DEFAULT)
  ),
  partition SUM_DUTY_2014_02 values less than (TO_DATE( 2014-02-01 00:00:00, SYYYY-MM-DD HH24:MI:SS, NLS_CALENDAR=GREGORIAN))
  (
    subpartition SUM_DUTY_2014_02_MANUAL_B values (B23),
    subpartition SUM_DUTY_2014_02_MANUAL_C values (C23),
    subpartition SUM_DUTY_2014_02_MANUAL_E values (E23),
    subpartition SUM_DUTY_2014_02_MANUAL_H values (H23),
    subpartition SUM_DUTY_2014_02_MANUAL_L values (L23),
    subpartition SUM_DUTY_2014_02_MANUAL_K values (K23),
    subpartition SUM_DUTY_2014_02_MANUAL_F values (DEFAULT)
  ),
  partition SUM_DUTY_2014_03 values less than (TO_DATE( 2014-03-01 00:00:00, SYYYY-MM-DD HH24:MI:SS, NLS_CALENDAR=GREGORIAN))
  (
    subpartition SUM_DUTY_2014_03_MANUAL_B values (B23),
    subpartition SUM_DUTY_2014_03_MANUAL_C values (C23),
    subpartition SUM_DUTY_2014_03_MANUAL_E values (E23),
    subpartition SUM_DUTY_2014_03_MANUAL_H values (H23),
    subpartition SUM_DUTY_2014_03_MANUAL_L values (L23),
    subpartition SUM_DUTY_2014_03_MANUAL_K values (K23),
    subpartition SUM_DUTY_2014_03_MANUAL_F values (DEFAULT)
  ),
  partition SUM_DUTY_2014_04 values less than (TO_DATE( 2014-04-01 00:00:00, SYYYY-MM-DD HH24:MI:SS, NLS_CALENDAR=GREGORIAN))
  (
    subpartition SUM_DUTY_2014_04_MANUAL_B values (B23),
    subpartition SUM_DUTY_2014_04_MANUAL_C values (C23),
    subpartition SUM_DUTY_2014_04_MANUAL_E values (E23),
    subpartition SUM_DUTY_2014_04_MANUAL_H values (H23),
    subpartition SUM_DUTY_2014_04_MANUAL_L values (L23),
    subpartition SUM_DUTY_2014_04_MANUAL_K values (K23),
    subpartition SUM_DUTY_2014_04_MANUAL_F values (DEFAULT)
  ),
  partition SUM_DUTY_2014_05 values less than (TO_DATE( 2014-05-01 00:00:00, SYYYY-MM-DD HH24:MI:SS, NLS_CALENDAR=GREGORIAN))
  (
    subpartition SUM_DUTY_2014_05_MANUAL_B values (B23),
    subpartition SUM_DUTY_2014_05_MANUAL_C values (C23),
    subpartition SUM_DUTY_2014_05_MANUAL_E values (E23),
    subpartition SUM_DUTY_2014_05_MANUAL_H values (H23),
    subpartition SUM_DUTY_2014_05_MANUAL_L values (L23),
    subpartition SUM_DUTY_2014_05_MANUAL_K values (K23),
    subpartition SUM_DUTY_2014_05_MANUAL_F values (DEFAULT)
  ),
  partition SUM_DUTY_2014_06 values less than (TO_DATE( 2014-06-01 00:00:00, SYYYY-MM-DD HH24:MI:SS, NLS_CALENDAR=GREGORIAN))
  (
    subpartition SUM_DUTY_2014_06_MANUAL_B values (B23),
    subpartition SUM_DUTY_2014_06_MANUAL_C values (C23),
    subpartition SUM_DUTY_2014_06_MANUAL_E values (E23),
    subpartition SUM_DUTY_2014_06_MANUAL_H values (H23),
    subpartition SUM_DUTY_2014_06_MANUAL_L values (L23),
    subpartition SUM_DUTY_2014_06_MANUAL_K values (K23),
    subpartition SUM_DUTY_2014_06_MANUAL_F values (DEFAULT)
  ),
  partition SUM_DUTY_2014_07 values less than (TO_DATE( 2014-07-01 00:00:00, SYYYY-MM-DD HH24:MI:SS, NLS_CALENDAR=GREGORIAN))
  (
    subpartition SUM_DUTY_2014_07_MANUAL_B values (B23),
    subpartition SUM_DUTY_2014_07_MANUAL_C values (C23),
    subpartition SUM_DUTY_2014_07_MANUAL_E values (E23),
    subpartition SUM_DUTY_2014_07_MANUAL_H values (H23),
    subpartition SUM_DUTY_2014_07_MANUAL_L values (L23),
    subpartition SUM_DUTY_2014_07_MANUAL_K values (K23),
    subpartition SUM_DUTY_2014_07_MANUAL_F values (DEFAULT)
  ),
  partition SUM_DUTY_2014_08 values less than (TO_DATE( 2014-08-01 00:00:00, SYYYY-MM-DD HH24:MI:SS, NLS_CALENDAR=GREGORIAN))
  (
    subpartition SUM_DUTY_2014_08_MANUAL_B values (B23),
    subpartition SUM_DUTY_2014_08_MANUAL_C values (C23),
    subpartition SUM_DUTY_2014_08_MANUAL_E values (E23),
    subpartition SUM_DUTY_2014_08_MANUAL_H values (H23),
    subpartition SUM_DUTY_2014_08_MANUAL_L values (L23),
    subpartition SUM_DUTY_2014_08_MANUAL_K values (K23),
    subpartition SUM_DUTY_2014_08_MANUAL_F values (DEFAULT)
  ),
  partition SUM_DUTY_2014_09 values less than (TO_DATE( 2014-09-01 00:00:00, SYYYY-MM-DD HH24:MI:SS, NLS_CALENDAR=GREGORIAN))
  (
    subpartition SUM_DUTY_2014_09_MANUAL_B values (B23),
    subpartition SUM_DUTY_2014_09_MANUAL_C values (C23),
    subpartition SUM_DUTY_2014_09_MANUAL_E values (E23),
    subpartition SUM_DUTY_2014_09_MANUAL_H values (H23),
    subpartition SUM_DUTY_2014_09_MANUAL_L values (L23),
    subpartition SUM_DUTY_2014_09_MANUAL_K values (K23),
    subpartition SUM_DUTY_2014_09_MANUAL_F values (DEFAULT)
  ),
  partition SUM_DUTY_2014_10 values less than (TO_DATE( 2014-10-01 00:00:00, SYYYY-MM-DD HH24:MI:SS, NLS_CALENDAR=GREGORIAN))
  (
    subpartition SUM_DUTY_2014_10_MANUAL_B values (B23),
    subpartition SUM_DUTY_2014_10_MANUAL_C values (C23),
    subpartition SUM_DUTY_2014_10_MANUAL_E values (E23),
    subpartition SUM_DUTY_2014_10_MANUAL_H values (H23),
    subpartition SUM_DUTY_2014_10_MANUAL_L values (L23),
    subpartition SUM_DUTY_2014_10_MANUAL_K values (K23),
    subpartition SUM_DUTY_2014_10_MANUAL_F values (DEFAULT)
  ),
  partition SUM_DUTY_2014_11 values less than (TO_DATE( 2014-11-01 00:00:00, SYYYY-MM-DD HH24:MI:SS, NLS_CALENDAR=GREGORIAN))
  (
    subpartition SUM_DUTY_2014_11_MANUAL_B values (B23),
    subpartition SUM_DUTY_2014_11_MANUAL_C values (C23),
    subpartition SUM_DUTY_2014_11_MANUAL_E values (E23),
    subpartition SUM_DUTY_2014_11_MANUAL_H values (H23),
    subpartition SUM_DUTY_2014_11_MANUAL_L values (L23),
    subpartition SUM_DUTY_2014_11_MANUAL_K values (K23),
    subpartition SUM_DUTY_2014_11_MANUAL_F values (DEFAULT)
  ),
  partition SUM_DUTY_2014_12 values less than (TO_DATE( 2014-12-01 00:00:00, SYYYY-MM-DD HH24:MI:SS, NLS_CALENDAR=GREGORIAN))
  (
    subpartition SUM_DUTY_2014_12_MANUAL_B values (B23),
    subpartition SUM_DUTY_2014_12_MANUAL_C values (C23),
    subpartition SUM_DUTY_2014_12_MANUAL_E values (E23),
    subpartition SUM_DUTY_2014_12_MANUAL_H values (H23),
    subpartition SUM_DUTY_2014_12_MANUAL_L values (L23),
    subpartition SUM_DUTY_2014_12_MANUAL_K values (K23),
    subpartition SUM_DUTY_2014_12_MANUAL_F values (DEFAULT)
  )
);

后要求以后当年自动新建下一年分区:

create or replace procedure SP_AutoCreatePartition is
/*自动新建系统中所有分区表的下一年的分区*/
/*过程中涉及DBA_TAB_PARTITIONS的访问,必须给用当前用户select权限:grant select on DBA_TAB_PARTITIONS to 用户*/
   V_COUNT NUMBER;                --用于判断是否已存在分区
   V_USERNAME VARCHAR2(100);      --当前用户
   V_DATE_STR VARCHAR2(100);      --下一年年份
   X NUMBER;                      --一年十二个月
   V_PARTITION_DATE VARCHAR2(100);--分区的日期格式
   V_DATA_STRING VARCHAR2(100);   --分区值年月
   V_SQL VARCHAR2(4000);
begin
    SELECT USER INTO V_USERNAME FROM DUAL;--获取当前用户
    SELECT TO_CHAR(TRUNC(ADD_MONTHS(SYSDATE,12),YYYY),YYYY) INTO V_DATE_STR  FROM DUAL;--获取下一年的年份


    SELECT COUNT(1) INTO V_COUNT FROM DBA_TAB_PARTITIONS T WHERE T.TABLE_NAME=SUM_DUTY AND  INSTR(T.PARTITION_NAME,V_DATE_STR)>0 AND T.TABLE_OWNER=V_USERNAME;--计算当前表中是否已存在下一年的分区
    IF V_COUNT=0 THEN
    x := 1;
    WHILE x <=12 LOOP
    SELECT TO_CHAR(ADD_MONTHS(TRUNC(ADD_MONTHS(SYSDATE,12),YYYY),x-1),YYYY_MM) INTO V_PARTITION_DATE FROM DUAL;
    SELECT TO_CHAR(ADD_MONTHS(TRUNC(ADD_MONTHS(SYSDATE,12),YYYY),x-1),YYYY-MM) INTO V_DATA_STRING FROM DUAL;
    V_SQL:=ALTER TABLE SUM_DUTY ADD partition SUM_DUTY_||V_PARTITION_DATE|| values less than (TO_DATE(‘‘‘||V_DATA_STRING||-01 00:00:00‘‘, ‘‘SYYYY-MM-DD HH24:MI:SS‘‘, ‘‘NLS_CALENDAR=GREGORIAN‘‘))
    (
       subpartition SUM_DUTY_||V_PARTITION_DATE||_MANUAL_B values (‘‘B23‘‘),
       subpartition SUM_DUTY_||V_PARTITION_DATE||_MANUAL_C values (‘‘C23‘‘),
       subpartition SUM_DUTY_||V_PARTITION_DATE||_MANUAL_E values (‘‘E23‘‘),
       subpartition SUM_DUTY_||V_PARTITION_DATE||_MANUAL_H values (‘‘H23‘‘),
       subpartition SUM_DUTY_||V_PARTITION_DATE||_MANUAL_L values (‘‘L23‘‘),
       subpartition SUM_DUTY_||V_PARTITION_DATE||_MANUAL_K values (‘‘K23‘‘),
       subpartition SUM_DUTY_||V_PARTITION_DATE||_MANUAL_F values (DEFAULT)
    );
    EXECUTE IMMEDIATE V_SQL;
    x := x + 1;
    END LOOP;
    END IF;

end SP_AutoCreatePartition;

 

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