split命令分割分区的方法
SQL> select PARTITIONED from dba_tables where table_name='LYTUSAGE';
PAR
---
YES
SQL> select PARTITION_NAME,HIGH_VALUE from dba_tab_partitions where TABLE_NAME='LYTUSAGE';
PARTITION_NAME HIGH_VALUE
------------------------------ --------------------------------------------------------------------------------
LYTUSAGE_200401 TO_DATE(' 2004-02-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200402 TO_DATE(' 2004-03-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200403 TO_DATE(' 2004-04-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200404 TO_DATE(' 2004-05-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200405 TO_DATE(' 2004-06-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200406 TO_DATE(' 2004-07-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200407 TO_DATE(' 2004-08-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200408 TO_DATE(' 2004-09-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200409 TO_DATE(' 2004-10-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200410 TO_DATE(' 2004-11-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200411 TO_DATE(' 2004-12-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200412 TO_DATE(' 2005-01-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200501 TO_DATE(' 2005-02-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200502 TO_DATE(' 2005-03-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200503 TO_DATE(' 2005-04-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200504 TO_DATE(' 2005-05-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200505 TO_DATE(' 2005-06-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200506 TO_DATE(' 2005-07-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200507 TO_DATE(' 2005-08-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200508 TO_DATE(' 2005-09-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200509 TO_DATE(' 2005-10-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200510 TO_DATE(' 2005-11-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200511 TO_DATE(' 2005-12-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200512 TO_DATE(' 2006-01-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
24 rows selected.
删除2005年1月和2月的分区：
SQL> alter table lytusage drop partition LYTUSAGE_200501;
Table altered.
SQL> alter table lytusage drop partition LYTUSAGE_200502;
Table altered.
SQL> select PARTITION_NAME,HIGH_VALUE,TABLESPACE_NAME from dba_tab_partitions where table_name='LYTUSAGE';
PARTITION_NAME HIGH_VALUE
------------------------------ --------------------------------------------------------------------------------
TABLESPACE_NAME
------------------------------
LYTUSAGE_200401 TO_DATE(' 2004-02-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200402 TO_DATE(' 2004-03-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200403 TO_DATE(' 2004-04-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200404 TO_DATE(' 2004-05-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200405 TO_DATE(' 2004-06-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200406 TO_DATE(' 2004-07-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200407 TO_DATE(' 2004-08-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200408 TO_DATE(' 2004-09-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200409 TO_DATE(' 2004-10-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200410 TO_DATE(' 2004-11-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200411 TO_DATE(' 2004-12-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200412 TO_DATE(' 2005-01-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200503 TO_DATE(' 2005-04-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200504 TO_DATE(' 2005-05-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200505 TO_DATE(' 2005-06-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200506 TO_DATE(' 2005-07-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200507 TO_DATE(' 2005-08-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200508 TO_DATE(' 2005-09-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200509 TO_DATE(' 2005-10-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200510 TO_DATE(' 2005-11-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200511 TO_DATE(' 2005-12-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
LYTUSAGE_200512 TO_DATE(' 2006-01-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
WACOS
22 rows selected.
SQL> ALTER TABLE LYTUSAGE
SPLIT PARTITION LYTUSAGE_200503 AT (TO_DATE('2005-03-01 00:00:00','SYYYY-MM-DD HH24:MI:SS'))
INTO (partition LYTUSAGE_200502 tablespace wacos,partition LYTUSAGE_200503 tablespace wacos) UPDATE GLOBAL INDEXES;
Table altered.
SQL> ALTER TABLE LYTUSAGE
SPLIT PARTITION LYTUSAGE_200502 AT (TO_DATE('2005-02-01 00:00:00','SYYYY-MM-DD HH24:MI:SS'))
INTO (partition LYTUSAGE_200501 tablespace wacos,partition LYTUSAGE_200502 tablespace wacos) UPDATE GLOBAL INDEXES;
Table altered.
PARTITION_NAME HIGH_VALUE
------------------------------ --------------------------------------------------------------------------------
LYTUSAGE_200412 TO_DATE(' 2005-01-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200401 TO_DATE(' 2004-02-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200402 TO_DATE(' 2004-03-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200403 TO_DATE(' 2004-04-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200404 TO_DATE(' 2004-05-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200405 TO_DATE(' 2004-06-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200406 TO_DATE(' 2004-07-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200407 TO_DATE(' 2004-08-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200408 TO_DATE(' 2004-09-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200409 TO_DATE(' 2004-10-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200410 TO_DATE(' 2004-11-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200411 TO_DATE(' 2004-12-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200503 TO_DATE(' 2005-04-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200504 TO_DATE(' 2005-05-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200505 TO_DATE(' 2005-06-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200506 TO_DATE(' 2005-07-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200507 TO_DATE(' 2005-08-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200508 TO_DATE(' 2005-09-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200509 TO_DATE(' 2005-10-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200510 TO_DATE(' 2005-11-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200511 TO_DATE(' 2005-12-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200512 TO_DATE(' 2006-01-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200501 TO_DATE(' 2005-02-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
LYTUSAGE_200502 TO_DATE(' 2005-03-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA
24 rows selected.
SQL> alter table lytusage drop partition LYTUSAGE_200511;
Table altered.
SQL> alter table lytusage drop partition LYTUSAGE_200512;
Table altered.
SQL> ALTER TABLE LYTUSAGE ADD PARTITION LYTUSAGE_200511
VALUES LESS THAN (TO_DATE('2005-12-01 00:00:00','SYYYY-MM-DD HH24:MI:SS'))
TABLESPACE wacos
STORAGE(
INITIAL 1M
NEXT 10M
MINEXTENTS 1
MAXEXTENTS unlimited
PCTINCREASE 0 )
PCTFREE 5
PCTUSED 95
NOLOGGING;
Table altered.
ALTER TABLE LYTUSAGE ADD PARTITION LYTUSAGE_200512
VALUES LESS THAN (TO_DATE('2006-01-01 00:00:00','SYYYY-MM-DD HH24:MI:SS'))
TABLESPACE wacos
STORAGE(
INITIAL 1M
NEXT 10M
MINEXTENTS 1
MAXEXTENTS unlimited
PCTINCREASE 0 )
PCTFREE 5
PCTUSED 95
NOLOGGING;
Table altered.