PARTITION SYSTEM_DATACHANGETRACE_N_N201901 VALUES LESS THAN (TO_DATE('2019-01-01 00:00:00','yyyy/mm/dd hh24:mi:ss')) TABLESPACE SYSTEMT, PARTITION SYSTEM_DATACHANGETRACE_N_N201802 VALUES LESS THAN (TO_DATE('2019-02-01 00:00:00','yyyy/mm/dd hh24:mi:ss')) TABLESPACE SYSTEMT, ...
1--Create a Table with four partitions each on its own tablespace2--Partitioned by range on the data column.3CREATETABLEfour_seasons4(5one DATE,6twoVARCHAR2(60),7threeNUMBER8)9PARTITIONBYRANGE ( one )10(11PARTITION quarter_one12VALUESLESS THAN ( TO_DATE('01-apr-1998','dd-mon-yyyy')...
在Oracle中创建分区表的方法是使用CREATE TABLE语句并在表定义中指定分区关键字。以下是一个示例: ``` CREATE TABLE employees ( employee_id NUMBER, employee_name VARCHAR2(50), hire_date DATE ) PARTITION BY RANGE (hire_date) ( PARTITION p1 VALUES LESS THAN (TO_DATE('01-JAN-2010', 'DD-MON-YY...
创建分区表:首先,使用CREATE TABLE语句创建表,并在表的定义中加入PARTITION BY子句,指定分区键和分区方式。例如:CREATE TABLE sales ( sales_id NUMBER, sales_date DATE, amount NUMBER ) PARTITION BY RANGE (sales_date) ( PARTITION sales_q1 VALUES LESS THAN (TO_DATE(‘01-APR-2022’,‘DD-MON-YYYY’...
--创建主键 alter table test_part add constraint test_part_pk primary key (ID) using INDEX; 2.3 按天创建 NUMTODSINTERVAL(1, 'day') --按天创建分区表 create table test_part ( ID NUMBER(20) not null, REMARK VARCHAR2(1000), create_time DATE ) PARTITION BY RANGE (CREATE_TIME) INTERVAL ...
PARTITION part01 ,ITPUB个人空间9l_m_O B7@_a PARTITION part02ITPUB个人空间2v_u_E2X'p4D_~1Q_\ p0J ); 4、组合分区表ITPUB个人空间_J5l/@7a;~_Y_f.t CREATE TABLE range_hash_example(ITPUB个人空间8D P_o_m:O_V range_column_key DATE, _k R:e_eD+t_a0hash_column_key INT,ITPUB个人...
PARTITION part2 VALUES LESS THAN (MAXVALUE) TABLESPACE Part2_tb 1. ); 1. 二.列表分区: 1. 该分区的特点是某列的值只有几个,基于这样的特点我们可以采用列表分区。 1. 例一 1. CREATE TABLE PROBLEM_TICKETS 1. ( 1. PROBLEM_ID NUMBER(7) NOT NULL PRIMARY KEY, ...
partition p0 values (default) ); 哈希分区: create table emp ( empno number(4), ename varchar2(30), sal number) partition by hash (empno) partitions 8 store in (emp1,emp2,emp3,emp4,emp5,emp6,emp7,emp8); 组合分区: 范围哈希组合分区: ...
范围分区表是通过 create table 语句的 partition by range 子句来创建的,分区的范围通过 values less than 子句指定,其指定的是分区的上限(不包含),所有大于等于指定值的数据被分配至下一个分区,除了第一个分区,每个分区的下限即前一个分区的上限: create table members ( ...
CREATE TABLE products (partno NUMBER, description VARCHAR2 (60)) PARTITION BY HASH (partno) PARTITIONS 4 STORE IN (tab1, tab2, tab3, tab4); List Partitioning Use list partitioning when you require explicit control over how rows map to partitions. You can specify a list of discrete ...