oracle服务器如何从分区表中获取分区列名

Question

我是 oracle 的新手，我想从分区名称中获取分区列名称。相同的查询在MySQL：

SELECT PARTITION_EXPRESSION FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_SCHEMA = ? AND TABLE_NAME = ? limit 1 

此查询将为我提供分区列名，与我在 oracle 中想要的输出相同

我的 oracle 创建表查询是这样的

CREATE TABLE part_char_date  
(emp_no NUMBER(11)  , birth_date date  , first_name VARCHAR2(100),
last_name VARCHAR2(100)  , gender CHAR(1) , hire_date DATE  ) 
PARTITION BY RANGE  ( hire_date )  
INTERVAL(NUMTOYMINTERVAL(1, 'MONTH'))
(PARTITION p0 VALUES LESS THAN (TO_DATE('1-1-2007', 'DD-MM-YYYY')), 
PARTITION p1 VALUES LESS THAN (TO_DATE('1-1-2008', 'DD-MM-YYYY')),   
PARTITION p2 VALUES LESS THAN (TO_DATE('1-7-2009', 'DD-MM-YYYY')), 
PARTITION p3 VALUES LESS THAN (TO_DATE('1-1-2010', 'DD-MM-YYYY')) )

现在我想获取分区列。任何人帮助我

Answer 1

如果你的意思是分区键列那么

SELECT OWNER, NAME, OBJECT_TYPE, COLUMN_NAME, COLUMN_POSITION FROM ALL_PART_KEY_COLUMNS WHERE NAME = 'PART_CHAR_DATE';