我有两个表,具有相同的分区和子分区,填充了一些虚拟数据:
CREATE TABLE TEST_TBL_1(col_1 number, col_2 number, col_3 number, col_4 number ,col_5 VARCHAR2(100))
PARTITION BY RANGE (col_1, col_2, col_3)
SUBPARTITION BY RANGE (col_4)
(
PARTITION PDUMMY
VALUES LESS THAN (-1, -1, -1)
( SUBPARTITION SPDUMMY VALUES LESS THAN (-1)),
PARTITION P_1_1_1
VALUES LESS THAN (1, 1, 1)
( SUBPARTITION SP_1_1_1_1000 VALUES LESS THAN (1000),
SUBPARTITION SP_1_1_1_2000 VALUES LESS THAN (2000),
SUBPARTITION SP_1_1_1_3000 VALUES LESS THAN (3000)),
PARTITION P_2_2_2
VALUES LESS THAN (2, 2, 2)
( SUBPARTITION SP_2_2_2_1000 VALUES LESS THAN (1000),
SUBPARTITION SP_2_2_2_2000 VALUES LESS THAN (2000),
SUBPARTITION SP_2_2_2_3000 VALUES LESS THAN (3000)));
CREATE TABLE TEST_TBL_2(col_1 number, col_2 number, col_3 number, col_4 number ,col_5 VARCHAR2(100))
PARTITION BY RANGE (col_1, col_2, col_3)
SUBPARTITION BY RANGE (col_4)
(
PARTITION PDUMMY
VALUES LESS THAN (-1, -1, -1)
( SUBPARTITION SPDUMMY VALUES LESS THAN (-1)),
PARTITION P_1_1_1
VALUES LESS THAN (1, 1, 1)
( SUBPARTITION SP_1_1_1_1000 VALUES LESS THAN (1000),
SUBPARTITION SP_1_1_1_2000 VALUES LESS THAN (2000),
SUBPARTITION SP_1_1_1_3000 VALUES LESS THAN (3000)),
PARTITION P_2_2_2
VALUES LESS THAN (2, 2, 2)
( SUBPARTITION SP_2_2_2_1000 VALUES LESS THAN (1000),
SUBPARTITION SP_2_2_2_2000 VALUES LESS THAN (2000),
SUBPARTITION SP_2_2_2_3000 VALUES LESS THAN (3000)));
INSERT INTO TEST_TBL_1(col_1, col_2, col_3, col_4, col_5) values (1,1,0,500, 'TABLE 1: Partition P_1_1_1 subpartition SP_1_1_1_1000');
INSERT INTO TEST_TBL_1(col_1, col_2, col_3, col_4, col_5) values (1,1,0,1300, 'TABLE 1: Partition P_1_1_1 subpartition SP_1_1_1_2000');
INSERT INTO TEST_TBL_1(col_1, col_2, col_3, col_4, col_5) values (1,1,0,2700, 'TABLE 1: Partition P_1_1_1 subpartition SP_1_1_1_3000');
INSERT INTO TEST_TBL_1(col_1, col_2, col_3, col_4, col_5) values (1,1,0,2990, 'TABLE 1: Partition P_1_1_1 subpartition SP_1_1_1_3000');
INSERT INTO TEST_TBL_2(col_1, col_2, col_3, col_4, col_5) values (1,1,0,700, 'TABLE 2: Partition P_1_1_1 subpartition SP_1_1_1_1000');
INSERT INTO TEST_TBL_2(col_1, col_2, col_3, col_4, col_5) values (1,1,0,1500, 'TABLE 2: Partition P_1_1_1 subpartition SP_1_1_1_2000');
INSERT INTO TEST_TBL_2(col_1, col_2, col_3, col_4, col_5) values (1,1,0,2222, 'TABLE 2: Partition P_1_1_1 subpartition SP_1_1_1_3000');
INSERT INTO TEST_TBL_2(col_1, col_2, col_3, col_4, col_5) values (1,1,0,2323, 'TABLE 2: Partition P_1_1_1 subpartition SP_1_1_1_3000');
我的目标是将表1中的分区与表2中的相应分区交换,包括所有子分区数据 . 但是如果我使用交换分区语法:
ALTER TABLE test_tbl_1
EXCHANGE PARTITION P_1_1_1
WITH TABLE test_tbl_2 ;
我最终会得到一个错误:
ORA-14293: Number of partitioning columns does not match number of subpartitioning columns
有没有办法在一个语句中交换这些表之间的分区?如果不是,请您指导我一步一步完成这项工作的最有效方法吗?
谢谢 .
1 回答
当您进行分区交换时,您正在交换:
带有非分区表的分区表或
具有分区表的子分区表 .
所以你需要在你的情况下使用两个步骤 . 您将拥有一个已分区的虚拟表 . 那你会的
将table_1_1 partition_1与虚拟Exchange table_2 partition_1交换为dummy
您将对所有必需的分区重复此操作 .