SQL> select * from v$version;
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
PL/SQL Release 11.2.0.1.0 - Production
CORE 11.2.0.1.0 Production
TNS for Linux: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
--分區表的定義
CREATE TABLE "AIKI"."PT1"
( "OBJECT_ID" NUMBER,
"STATUS" VARCHAR2(8)
) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOLOGGING
STORAGE(
BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "USERS"
PARTITION BY RANGE ("OBJECT_ID")
(PARTITION "P01" VALUES LESS THAN (10000)
PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOLOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DE
FAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "USERS" NOCOMPRESS ,
PARTITION "P02" VALUES LESS THAN (20000)
PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOLOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DE
FAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "USERS" NOCOMPRESS ,
PARTITION "P03" VALUES LESS THAN (30000)
PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOLOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DE
FAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "USERS" NOCOMPRESS ,
PARTITION "P04" VALUES LESS THAN (32000)
PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOLOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DE
FAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "USERS" NOCOMPRESS ,
PARTITION "P05" VALUES LESS THAN (33000)
PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOLOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DE
FAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "USERS" NOCOMPRESS ,
PARTITION "P06" VALUES LESS THAN (34000)
PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOLOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DE
FAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "USERS" NOCOMPRESS ,
PARTITION "P07" VALUES LESS THAN (37000)
PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOLOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DE
FAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "USERS" NOCOMPRESS ,
PARTITION "PMAX" VALUES LESS THAN (MAXVALUE)
PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOLOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DE
FAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "USERS" NOCOMPRESS )
TABLE_OWNER TABLE_NAME PARTITION_NAME PARTITION_POSITION NUM_ROWS BLOCKS
------------------------------ ------------------------------ ------------------------------ ------------------ ---------- ----------
AIKI PT1 P01 1 1241680 2734
AIKI PT1 P02 2 1256920 2886
AIKI PT1 P03 3 1279260 2926
AIKI PT1 P04 4 250680 585
AIKI PT1 P05 5 128240 298
AIKI PT1 P06 6 128220 320
AIKI PT1 P07 7 387520 912
AIKI PT1 PMAX 8 4546800 10232
SQL> alter table pt1 split partition pmax at (38000) into(partition p08,partition pmax) parallel 8;
Table altered.
SQL> select TABLE_OWNER,TABLE_NAME,PARTITION_NAME,PARTITION_POSITION,NUM_ROWS,BLOCKS from dba_tab_partitions where table_name='PT1';
TABLE_OWNER TABLE_NAME PARTITION_NAME PARTITION_POSITION NUM_ROWS BLOCKS
------------------------------ ------------------------------ ------------------------------ ------------------ ---------- ----------
AIKI PT1 P01 1 1241680 2734
AIKI PT1 P02 2 1256920 2886
AIKI PT1 P03 3 1279260 2926
AIKI PT1 P04 4 250680 585
AIKI PT1 P05 5 128240 298
AIKI PT1 P06 6 128220 320
AIKI PT1 P07 7 387520 912
AIKI PT1 P08 8
AIKI PT1 PMAX 9
9 rows selected.
SQL> select INDEX_NAME,PARTITION_NAME,STATUS from dba_ind_partitions where index_owner='AIKI' and index_name='IDX_PT1';
INDEX_NAME PARTITION_NAME STATUS
------------------------------ ------------------------------ --------
IDX_PT1 P01 USABLE
IDX_PT1 P02 USABLE
IDX_PT1 P03 USABLE
IDX_PT1 P04 USABLE
IDX_PT1 P05 USABLE
IDX_PT1 P06 UNUSABLE
IDX_PT1 P07 USABLE
IDX_PT1 P08 UNUSABLE
IDX_PT1 PMAX UNUSABLE
SQL> alter table pt1 split partition pmax at (39000) into(partition p09,partition pmax) update indexes parallel 8;
Table altered.
SQL> select INDEX_NAME,PARTITION_NAME,STATUS from dba_ind_partitions where index_owner='AIKI' and index_name='IDX_PT1';
INDEX_NAME PARTITION_NAME STATUS
------------------------------ ------------------------------ --------
IDX_PT1 P01 USABLE
IDX_PT1 P02 USABLE
IDX_PT1 P03 USABLE
IDX_PT1 P04 USABLE
IDX_PT1 P05 USABLE
IDX_PT1 P06 UNUSABLE
IDX_PT1 P07 USABLE
IDX_PT1 P08 UNUSABLE
IDX_PT1 P09 USABLE
IDX_PT1 PMAX USABLE
SQL> exec dbms_stats.gather_table_stats('AIKI','PT1',CASCADE=>TRUE,METHOD_OPT=>'FOR ALL COLUMNS SIZE 1',ESTIMATE_PERCENT=>5);
BEGIN dbms_stats.gather_table_stats('AIKI','PT1',CASCADE=>TRUE,METHOD_OPT=>'FOR ALL COLUMNS SIZE 1',ESTIMATE_PERCENT=>5); END;
*
ERROR at line 1:
ORA-20000: index "AIKI"."IDX_PT1" or partition of such index is in unusable state
ORA-06512: at "SYS.DBMS_STATS", line 20337
ORA-06512: at "SYS.DBMS_STATS", line 20360
ORA-06512: at line 1
SQL> ALTER INDEX IDX_PT1 REBUILD PARTITION P06 PARALLEL 4;
ALTER INDEX IDX_PT1 REBUILD PARTITION P08 PARALLEL 4;
Index altered.
SQL>
Index altered.
SQL> select INDEX_NAME,PARTITION_NAME,STATUS from dba_ind_partitions where index_owner='AIKI' and index_name='IDX_PT1';
INDEX_NAME PARTITION_NAME STATUS
------------------------------ ------------------------------ --------
IDX_PT1 P01 USABLE
IDX_PT1 P02 USABLE
IDX_PT1 P03 USABLE
IDX_PT1 P04 USABLE
IDX_PT1 P05 USABLE
IDX_PT1 P06 USABLE
IDX_PT1 P07 USABLE
IDX_PT1 P08 USABLE
IDX_PT1 P09 USABLE
IDX_PT1 PMAX USABLE
10 rows selected.
SQL> exec dbms_stats.gather_table_stats('AIKI','PT1',CASCADE=>TRUE,METHOD_OPT=>'FOR ALL COLUMNS SIZE 1',ESTIMATE_PERCENT=>5);
PL/SQL procedure successfully completed.
SQL> select TABLE_OWNER,TABLE_NAME,PARTITION_NAME,PARTITION_POSITION,NUM_ROWS,BLOCKS from dba_tab_partitions where table_name='PT1';
TABLE_OWNER TABLE_NAME PARTITION_NAME PARTITION_POSITION NUM_ROWS BLOCKS
------------------------------ ------------------------------ ------------------------------ ------------------ ---------- ----------
AIKI PT1 P01 1 1241860 2734
AIKI PT1 P02 2 1246480 2886
AIKI PT1 P03 3 1274280 2926
AIKI PT1 P04 4 254740 585
AIKI PT1 P05 5 127360 298
AIKI PT1 P06 6 127640 320
AIKI PT1 P07 7 384060 912
AIKI PT1 P08 8 128720 328
AIKI PT1 P09 9 127740 320
AIKI PT1 PMAX 10 4281420 9664
說明：此操作在操作期間應關注表空間的變化，特別是歸檔日誌的產生（量很大,如果split對象較大);
ORACLE基礎操作【02】 -->split分區表
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