PARTITION BY HASH(ID) ( PARTITION PART_01 TABLESPACE TS1, PARTITION PART_02 TABLESPACE TS2 ) --系统自动生成分区名 PARTITION BY HASH(ID) PARTITION 2 STORE IN(TS1,TS2) 1.3 列表分区(LIST分区) 关键字:LIST 判断标准:列值可以枚举。例如,可以以用户所在省份作为分区标志。 CREATE TABLE TABLE_1 (...
insert into emp_range_list(empno, deptno, first_name, last_name, status, hire_date) values (seq_par_id.nextval, 30,'latiny5','liu5','0', to_date('2017-06-02','yyyy-mm-dd')); insert into emp_range_list(empno, deptno, first_name, last_name, status, hire_date) values (seq_...
global partition by hash(gid) partitions 3 store in(par01,par02,par03); ---创建一个local索引rang分区 与range相同 --5、list分区 create table P_TABLE_PAR(GID,IID,FLID,PZXMNAME,DYLX,DYXM,AMENDBZ) partition by list(GID) ( partition par_01 values (1,2) tablespace par01, partition par...
select table_name, partition_name from user_tab_partitions where table_name='LIST_PART'; alter table list_part merge partitions p1,p3 into partition p_merged; select table_name, partition_name from user_tab_partitions where table_name='LIST_PART'; 4.5 分裂分区 当某个分区过大时,你可能想要将...
三:范围分区可以对各种谓词做分区消除,包括=,>,<,<>等比hash,和list分区要灵活 散列(hash)分区 一:oracle根据分区列的hash函数计算值, hash分区数来自动决定某一条记录放在哪一个分区(你无法决定). 二:分区数应为2的一个幂,如2,4,8,16……如若不然,记录的散列将会不均匀. ...
ORACLE数据库中PARTITION的用法 Oracle9i通过引入列表分区（List Partition），使得当前共有4种分区数据的方法，具体列出如下： 第一种 范围分区 1 对表进行单列的范围分区： 这使最为常用也是最简单的方法，具体例子如下： create table emp (empno number(4), ename varchar2(30), ...
In previous releases of Oracle, composite partitioning was limited to Range-Hash and Range-List partitioning. Oracle 11g Release 1 extends this to allow the following composite partitioning schemes: Range-Hash (available since 8i) Range-List (available since 9i) ...
Here, you are inserting data in xx_list_partition with batch_id = 3. Oracle Database is not able to find where this value/record should fit and you get partition error. In other words, there is no partition defined which can hold the value with batch_id = 3. ...
PARTITION BY LIST(region_code) ( PARTITION r0 VALUES IN (1, 3), PARTITION r1 VALUES IN (2, 5, 8), PARTITION r2 VALUES IN (4, 9), PARTITION r3 VALUES IN (6, 7, 10) ); For a statement such asSELECT * FROM t3 WHERE region_code BETWEEN 1 AND 3, the optimizer determines in ...
使用CREATE TABLE命令的PARTITION BY子句来创建一个分区表,这个分区表中的数据分配在一个或多个分区(和子分区)中。 语法介绍 CREATE TABLE命令语法有下面的三种形式: 列表分区语法 使用第一种形式创建一个列表分区表: CREATETABLE[ schema. ]table_name table_definitionPARTITIONBYLIST(column) [SUBPARTITIONBY{RANGE...