createtableEMP_RANGE ( empnoNUMBER(4)notnull, enameVARCHAR2(10), jobVARCHAR2(9), mgrNUMBER(4), hiredate DATE, salNUMBER(7,2)notnull, commNUMBER(7,2), deptnoNUMBER(2) ) partitionbyrange (HIREDATE) ( partition P_HIREDATE_1valuesless than (TO_DATE('1981-01-01 00:00:00','SYYYY-...
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...
语法及说明: create table table_name( col1 datatype, col2 datatype, ... ) partition by partition_method(column_name) ( partition partition_name values(value1), partition partition_name values(value2), ... ) 其中partition_methon可以用如下几种: range:按照分区; list:按照列表; hash:按照哈希...
定义分区:使用 PARTITION BY RANGE 子句定义分区,并为每个分区指定一个上限值(VALUES LESS THAN)。 示例代码 以下是一个创建范围分区表的示例,假设我们有一个销售数据表 sales,按照销售日期 sale_date 进行分区: sql CREATE TABLE sales ( sale_id NUMBER PRIMARY KEY, sale_date DATE NOT NULL, amount NUMBER,...
CREATE TABLE anshen.tab_p1 ( id NUMBER PRIMARY KEY, name VARCHAR2(50), created_at DATE, status VARCHAR2(20), amount NUMBER, description VARCHAR2(200) ) PARTITION BY RANGE (created_at) ( PARTITION p_2020 VALUES LESS THAN (TO_DATE('2021-01-01', 'YYYY-MM-DD')) ...
PARTITION partition_name1 VALUES LESS THAN (value1), PARTITION partition_name2 VALUES LESS THAN (value2), ... ) 在此语法中,我们使用CREATE TABLE语句创建具有多个分区的表。使用PARTITION BY RANGE子句将表数据按范围划分为多个分区。在括号内,我们使用PARTITION子句指定每个分区的名称和值。 2.添加分区 ALT...
Oracle使用range分区,根据时间列自动创建分区 -- Create table create table MY_TEST ( id NUMBER (12)notnull, name VARCHAR2 (12)notnull, today TIMESTAMP (6)defaultSYSDATE ) partitionbyrange (today) interval(numtodsinterval(1,'day')) --月分区用month,年分区用year( ...
CREATE TABLE partitioned_table ( id NUMBER, data_date DATE, data_value NUMBER ) PARTITION BY RANGE (data_date) ( PARTITION p1 VALUES LESS THAN (TO_DATE('2022-01-01', 'YYYY-MM-DD')), PARTITION p2 VALUES LESS THAN (TO_DATE('2023-01-01', 'YYYY-MM-DD')), PARTITION p3 VALUES LES...
create tableuser(user_idvarchar2(20char),user_namevarchar2(50char),part_flagNUMBER(1))partition byrange(part_flag)subpartition bylist(user_id)(partition p1 values lessthan(50')(subpartition s1values('01','02','03','04','05','06','07','08','09','10'),subpartition s1values('11'...
PARTITION CUS_PART2VALUESLESS THAN (200000) TABLESPACE CUS_TS02 ) 例二:按时间划分 CREATETABLEORDER_ACTIVITIES ( ORDER_IDNUMBER(7)NOTNULL, ORDER_DATE DATE, TOTAL_AMOUNTNUMBER, CUSTOTMER_IDNUMBER(7), PAIDCHAR(1) ) PARTITIONBYRANGE (ORDER_DATE) ...