Oracle 11g创建Interval分区表

1.

interval使用之后，就不用手工增加分区，来适应数据的增长。

2.

根据年月
INTERVAL(NUMTOYMINTERVAL(1,'YEAR'))

INTERVAL(NUMTOYMINTERVAL(1,'MONTH'))

根据天 INTERVAL(NUMTODSINTERVAL(1,'DAY'))

3.

CREATE
TABLE hr.int_par(

id
number primary key,

join_date
date )

partition
by range(join_date) interval (numtoyMinterval (1,'YEAR'))

--store
in (par01,par02,par03,par04,par05,par06,par07,par08,par09,par010,par011,par012)

(

partition
inte_par1 VALUES LESS THAN (to_date('2000-9-9','YYYY-MM-DD'))

)

4.

BEGIN

FOR
i IN 1..10 LOOP

EXECUTE
IMMEDIATE 'INSERT INTO hr.int_par VALUES (:1,:2)'

USING
i, trunc(to_date('2000-9-9','YYYY-MM-DD'),'yyyy')+366*i ;

END
LOOP;

COMMIT;

END;

/

5.

TABLE_NAME PARTITION_NAME HIGH_VALUE PARTITION_POSITION

------------------------------------------------------------------------------------------------------------ ------------------- --

INT_PAR SYS_P50 TO_DATE(' 2010-09-09 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA 11

INT_PAR SYS_P49 TO_DATE(' 2009-09-09 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA 10

INT_PAR SYS_P48 TO_DATE(' 2008-09-09 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA 9

INT_PAR SYS_P47 TO_DATE(' 2007-09-09 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA 8

INT_PAR SYS_P46 TO_DATE(' 2006-09-09 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA 7

INT_PAR SYS_P45 TO_DATE(' 2005-09-09 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA 6

INT_PAR SYS_P44 TO_DATE(' 2004-09-09 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA 5

INT_PAR SYS_P43 TO_DATE(' 2003-09-09 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA 4

INT_PAR SYS_P42 TO_DATE(' 2002-09-09 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA 3

INT_PAR SYS_P41 TO_DATE(' 2001-09-09 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA 2

INT_PAR INTE_PAR1 TO_DATE(' 2000-09-09 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIA 1

6.

SQL> SELECT * FROM hr.int_par partition(sys_p46);

ID JOIN_DATE

---------- -----------

6 2006-1-5

SQL> SELECT * FROM hr.int_par partition(sys_p50);

ID JOIN_DATE

---------- -----------

10 2010-1-8

7.