我正在尝试在以下示例模式上使用交换分区:
CREATE TABLE TEMP_TABLE_00(
CONTACT_ID NUMBER,
SECONDARY_CONTACT_FLAG NUMBER,
SOURCE_SYSTEM VARCHAR2(10 CHAR),
START_DATE DATE,
ACTIVE NUMBER,
SECONDARY_CONTACT_FLAGS NUMBER GENERATED ALWAYS AS (ACTIVE || SECONDARY_CONTACT_FLAG) VIRTUAL,
CONSTRAINT pk_temp_table_00 PRIMARY KEY (CONTACT_ID))
PARTITION BY LIST (SECONDARY_CONTACT_FLAGS)
SUBPARTITION BY RANGE (START_DATE)
( PARTITION p_ac_00 VALUES ('00')
( SUBPARTITION sp_ac_00_before_2014 VALUES LESS THAN (TO_DATE ('01.01.2014', 'DD.MM.YYYY')),
SUBPARTITION sp_ac_00_201401 VALUES LESS THAN (TO_DATE ('01.02.2014', 'DD.MM.YYYY'))
)
)
ENABLE ROW MOVEMENT;
create table TARGET_TABLE(
CONTACT_ID NUMBER,
SECONDARY_CONTACT_FLAG NUMBER,
SOURCE_SYSTEM VARCHAR2(10 CHAR),
START_DATE DATE,
ACTIVE NUMBER,
SECONDARY_CONTACT_FLAGS NUMBER GENERATED ALWAYS AS (ACTIVE || SECONDARY_CONTACT_FLAG) VIRTUAL,
CONSTRAINT pk_target_table PRIMARY KEY (CONTACT_ID))
PARTITION BY LIST (secondary_contact_flags)
SUBPARTITION BY RANGE (START_DATE)
( PARTITION p_ac_00 VALUES ('00')
( SUBPARTITION sp_ac_00_before_2014 VALUES LESS THAN (TO_DATE ('01.01.2014', 'DD.MM.YYYY')),
SUBPARTITION sp_ac_00_201401 VALUES LESS THAN (TO_DATE ('01.02.2014', 'DD.MM.YYYY'))
),
PARTITION p_ac_10 VALUES ('10')
( SUBPARTITION sp_ac_10_before_2014 VALUES LESS THAN (TO_DATE ('01.01.2014', 'DD.MM.YYYY')),
SUBPARTITION sp_ac_10_201401 VALUES LESS THAN (TO_DATE ('01.02.2014', 'DD.MM.YYYY'))
),
PARTITION p_ac_01 VALUES ('01')
( SUBPARTITION sp_ac_01_before_2014 VALUES LESS THAN (TO_DATE ('01.01.2014', 'DD.MM.YYYY')),
SUBPARTITION sp_ac_01_201401 VALUES LESS THAN (TO_DATE ('01.02.2014', 'DD.MM.YYYY'))
),
PARTITION p_ac_11 VALUES ('11')
( SUBPARTITION sp_ac_11_before_2014 VALUES LESS THAN (TO_DATE ('01.01.2014', 'DD.MM.YYYY')),
SUBPARTITION sp_ac_11_201401 VALUES LESS THAN (TO_DATE ('01.02.2014', 'DD.MM.YYYY'))
)
)
ENABLE ROW MOVEMENT;
INSERT INTO DM_KSCTSC.TEMP_TABLE_00 (CONTACT_ID, SECONDARY_CONTACT_FLAG, SOURCE_SYSTEM, START_DATE, ACTIVE) VALUES (1, 0, 'ABC', TO_DATE('20140101', 'YYYYMMDD'), 0);
commit;
尝试交换分区时:
alter table target_table exchange partition p_ac_00 with table TEMP_TABLE_00 without validation;
即使分区的结构相同,Oracle 也会返回
ORA-14292:表的分区类型必须与子分区类型匹配 复合分区数量
除了单独交换每个子分区之外,还有没有其他解决方案?
为了能够在分区表 (PT) 和非分区表 (TMP
) 之间交换分区,TMP 表必须具有与 PT 分区相同的结构。
即,如果 PT 已分区,则 TMP 是未分区的。
如果 PT 是复合分区的,则 TMP 的分区方式与 PT 的子分区相同。
在您的情况下是 TMP 表(TEMP_TABLE_00)中的问题,它必须按 RANGE 进行分区(与 TARGET_TABLE 的子分区相同)
CREATE TABLE TEMP_TABLE_00(
CONTACT_ID NUMBER,
SECONDARY_CONTACT_FLAG NUMBER,
SOURCE_SYSTEM VARCHAR2(10 CHAR),
START_DATE DATE,
ACTIVE NUMBER,
SECONDARY_CONTACT_FLAGS NUMBER GENERATED ALWAYS AS (ACTIVE || SECONDARY_CONTACT_FLAG) VIRTUAL,
CONSTRAINT pk_temp_table_00 PRIMARY KEY (CONTACT_ID))
PARTITION BY RANGE (START_DATE)
( PARTITION sp_ac_00_before_2014 VALUES LESS THAN (TO_DATE ('01.01.2014', 'DD.MM.YYYY')),
PARTITION sp_ac_00_201401 VALUES LESS THAN (TO_DATE ('01.02.2014', 'DD.MM.YYYY'))
)
ENABLE ROW MOVEMENT;
在此设置中,交换分区工作。