允许用户对不具有逻辑范围的数据进行分区
通过在分区键上执行HASH函数决定存储的分区
将数据平均地分布到不同的分区
语法：
[sql]
PARTITION BY HASH (column_name)
PARTITIONS number_of_partitions;
www.2cto.com
或：
[sql]
PARTITION BY HASH (column_name)
( PARTITION part1 [TABLESPACE tbs1],
PARTITION part2 [TABLESPACE tbs2],
...
PARTITION partN [TABLESPACE tbsN]);
例：
[sql]
CREATE TABLE Employee
( www.2cto.com
Employee_ID varchar2 (5),
Employee_Name varchar2(20),
Department varchar2 (10)
)
PARTITION BY HASH (Department)
(
Partition D1,
Partition D2,
Partition D3
);
作者 jason5186