1CREATETABLElist_example(2dnameVARCHAR2(10),3DATAVARCHAR2(20)4) PARTITIONBYLIST(dname)5(6PARTITION part01VALUES('ME','PE','QC','RD'),7PARTITION part02VALUES('SMT','SALE')8); 3、哈希分区表 1CREATETABLEhash_example(2hash_key_column DATE,3DATAVARCHAR2(20)4) PARTITIONBYHASH(hash_key_...
create table range_list_example ( id number(2), done_date date, data varchar2(50) ) --顶层范围分区的分区键为 range_list_example 表中的 done_date 字段; --第二层列表分区的分区键为 range_list_example 表中的 id 字段; partition by range (done_date) subpartition by list (id) ( partitio...
ALTER TABLE SALES RENAME PARTITION P21 TO P2;2。。 1. 三、删除分区 You can drop partitions from range, list, or composite range-list partitioned tables. ALTER TABLE ... DROP PARTITION part_name; For hash-partitioned tables, or hash subpartitions of range-hash partitioned tables, you must...
oracle create table partition by 表达式在Oracle数据库中,分区表是一种将表物理上分割成多个独立的部分的技术。每个分区可以独立于其他分区进行存储、备份和索引,从而提高了查询性能、数据管理和维护的便利性。 创建分区表时,您可以使用表达式来确定分区键,这个表达式基于表中的一列或多列。例如,您可能想要根据日期对...
)PARTITION BY LIST(dname) ( PARTITION part01 VALUES('ME','PE','QC','RD'), PARTITION part02 VALUES('SMT','SALE') ); 3、哈希分区表 CREATE TABLE hash_example( hash_key_column DATE, DATA VARCHAR2(20) ) PARTITION BY HASH(hash_key_cloumn) ...
CREATE TABLE list_example (dname VARCHAR2 (10), DATA VARCHAR2 (20)) PARTITION BY LIST (dname) (PARTITION part01 VALUES ('ME', 'PE', 'QC', 'RD'), PARTITION part02 VALUES ('SMT', 'SALE')); 1. 2. 3. 4. 5. 6. (3)、哈希分区表 ...
Here is the example: PARENT TABLE CREATE TABLE parent_tab ( id NUMBER NOT NULL, code VARCHAR2(10) NOT NULL, description VARCHAR2(50), created_date TIMESTAMP(6), CONSTRAINT parent_tab_pk PRIMARY KEY (id) ) PARTITION BY RANGE (created_date) SUBPARTITION BY LIST (descri...
CREATE TABLE sales_parts (serial_id NUMBER(10,0), goods_id NUMBER(10,0),unit_price(12,2), quantity NUMBER(12,2),subtotal (NUMBER(12,2), create_date date) PARTITION BY RANGE (create_date) (PARTITION p2009 VALUES LESS THAN (to_date('2010-01-01','YYYY-MM-DD')), ...
CREATE TABLE table_name ( ... ) PARTITION BY RANGE(column1) INTERVAL expr [STORE IN (tablespace1,[tablespace2,...])] ( PARTITION partition_name1 VALUES LESS THAN(literal | MAXVALUE) [TABLESPACE tablespace1], PARTITION partition_name2 VALUES LESS THAN(literal | MAXVALUE) [TABLESPACE tablesp...
The following example creates a table with list partitioning create table customers (custcode number(5), Name varchar2(20), Addr varchar2(10,2), City varchar2(20), Bal number(10,2)) Partition by list (city), Partition north_India values (‘DELHI’,’CHANDIGARH’), ...