一个表上有多个分区？

Question

我的印象是可以在一个表上放置多个分区，因此当我输入以下代码时，这让我感到惊讶：

CREATE TABLE ParentDetails1
(ParentID INTEGER NOT NULL,
ParentName VARCHAR (50) NOT NULL,
DateOfBirth DATE NOT NULL,
Gender VARCHAR (10) CHECK (Gender IN ('m', 'f')) NOT NULL,
CONSTRAINT ParentDetails_PK PRIMARY KEY (ParentID))
PARTITION BY RANGE (ParentName)
    (partition ParentNamePartition1 VALUES LESS THAN ('B'),
     partition ParentNamePartition2 VALUES LESS THAN ('D'),
     partition ParentNamePartition3 VALUES LESS THAN ('F'),
     partition ParentNamePartition4 VALUES LESS THAN ('H'),
     partition ParentNamePartition5 VALUES LESS THAN ('J'),
     partition ParentNamePartition6 VALUES LESS THAN ('L'),
     partition ParentNamePartition7 VALUES LESS THAN ('N'),
     partition ParentNamePartition8 VALUES LESS THAN ('P'),
     partition ParentNamePartition9 VALUES LESS THAN ('R'),
     partition ParentNamePartition10 VALUES LESS THAN ('T'),
     partition ParentNamePartition11 VALUES LESS THAN ('V'),
     partition ParentNamePartition12 VALUES LESS THAN ('X'),
     partition ParentNamePartition13 VALUES LESS THAN (MAXVALUE))
PARTITION BY HASH (ParentID)
    partitions 10
PARTITION BY LIST (Gender)
    (partition ParentGenderPartition1 VALUES ('m'),
     partition ParentGenderPartition2 VALUES ('f'))
CLUSTER
    ParentContact_Cluster (ParentID);

...并收到错误消息，指出只能在一个表上输入一个分区子句？

有没有解决的办法？

非常感谢，祖鲁

Answer 1

您仅限于一个表的分区方案。 根据您要解决的问题，该分区方案可以同时包含分区和子分区。

在单个表上具有多个竞争分区方案甚至意味着什么？

Answer 2

您需要使用子分区来完成您想做的事情。 Oracle 11.2文档