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parti
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-...
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...
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...
在Oracle数据库中,可以通过PARTITION BY RANGE语句根据某个列的范围来创建分区表。在你的情况下,你希望根据id的大小来创建分区。以下是如何实现的步骤和示例代码: 1. 理解Oracle分区表的概念和用途 Oracle分区表是一种将大表分割成多个较小的、更容易管理的部分的技术。分区表可以提高查询性能、简化数据管理,并有助...
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) ...
--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 ...
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'...
1CREATETABLE表名 (列定义) partitionbyrange(列名)2(3partition 分区名valuesless than (值),4。。。5partition 分区名valuesless than (maxvalue) ###默认分区6); 2、哈希分区(hash) 简介: 语法: View Code 注:指定每个分区的表空间,用于分散在各个数据文件中。 3、...
)PARTITION BY RANGE(OrderDate) (PARTITION CAD2008_01 VALUES LESS THAN (TO_DATE('2008-01-01','YYYY-MM-DD')) , PARTITION CAD2008_02 VALUES LESS THAN (TO_DATE('2008-02-01','YYYY-MM-DD')) , PARTITION CAD2008_03 VALUES LESS THAN (TO_DATE('2008-03-01','YYYY-MM-DD')) , ...