范围分区表是通过 create table 语句的 partition by range 子句来创建的,分区的范围通过 values less than 子句指定,其指定的是分区的上限(不包含),所有大于等于指定值的数据被分配至下一个分区,除了第一个分区,每个分区的下限即前一个分区的上限: create table members ( id number, name varchar2(32), creat...
(11)Alteringan existing hybrid partitioned table with no external partitions to apartitioned table with internal partitions only (12)Anexternal partition can be exchanged with an external nonpartitioned table. Alsoan internal partition can be exchanged with an internal nonpartitioned table. 注意:1)...
--散列分区表的散列分区接合ALTERTABLEtable_nameCOALESCEPARTITION;--散列分区表的散列子分区接合ALTERTABLEtable_name MODIFY PARTITION partition_nameCOALESCESUBPARTITION; 7.重命名表分区 ALTERTABLEtable_name RENAME PARTITION old_nameTOnew_name;ALTERTABLEtable_name RENAME SUBPARTITION old_nameTOnew_name; 8.交换...
ALTER TABLE <table_name> MODIFY PARTITION <partition_name> ADD SUBPARTITION <user_define_subpartition_name> VALUES LESS THAN(...); 5.5、修改分区名称(修改相关的属性信息) ALTER TABLE TABLE_PARTITION RENAME PARTITION MERGED_PARTITION TO MERGED_PARTITION02; 5.6、交换分区(快速交换数据,其实是交换段名称...
2) Insert into the partitioned table with a subquery from the non-partitioned table: SQL> insert into partbl (qty, name) select * from origtbl; 3) If you want the partitioned table to have the same name as the original table, then drop the original table and rename the new table:...
新建分区表, 然后insert select; 或者在创建新分区表的同时插入(CTAS,create table as select). 完成后做两次rename table操作. 方法2: 在线重定义, 使用DBMS_REDEFINITION, 步骤有点复杂 ,网上有很多介绍该方法的文章, 可以百度一下. 方法3: 创建只有一个分区的分区表, 用exchange partition将原表变成分区表后...
alter table emp_part move partition p2 tablespace example; 注:如果是将分区表从一个表空间移动到另外一个表空间,使用下面的语法: alter table owner.table_name move partition partition_name [tablespace tablespace_name]; 分区表的管理:分区更名(RENAME) ...
ALTER TABLE SALES RENAME PARTITION P21 TO P2; 相关查询 -- 跨分区查询 select sum( ) from (select count() cn from t_table_SS PARTITION (P200709_1) union all select count(*) cn from t_table_SS PARTITION (P200709_2) ); --查询表上有多少分区 SELECT * FROM useR_TAB_PARTITIONS WHERE ...
2) Insert into the partitioned table with a subquery from the non-partitioned table: SQL> insert into partbl (qty, name) select * from origtbl; 3) If you want the partitioned table to have the same name as the original table, then drop the original table and rename the new table:...
PARTITION BY RANGE (CUSTOMER_ID) ( PARTITION CUS_PART1 VALUES LESS THAN (100000) TABLESPACE CUS_TS01, PARTITION CUS_PART2 VALUES LESS THAN (200000) TABLESPACE CUS_TS02 ) 例二:按时间划分 Java代码 CREATE TABLE ORDER_ACTIVITIES ( ORDER_ID NUMBER(7) NOT NULL, ...