partitionbyrange (HIREDATE) ( partition P_HIREDATE_1valuesless than (TO_DATE('1981-01-01 00:00:00','SYYYY-MM-DD HH24:MI:SS','NLS_CALENDAR=GREGORIAN')) tablespace TBS_CLPC_META pctfree10initrans1maxtrans255, partition P_HIREDATE_2valuesless than (TO_DATE('1982-01-01 00:00:00',...
oracle partition by range 语法oracle partition by range语法 Oraclepartitionbyrange是一种表分区技术,它根据一定的范围将表分割成多个分区,使得数据存储和查询更加高效。Partition by range可以基于一个或多个列的值定义分区范围,支持不同数据类型的分区键。在建表时可以使用partition by range子句指定表分区方式,语法...
PARTITION BY RANGE (created_at) ( PARTITION p_2020 VALUES LESS THAN (TO_DATE('2021-01-01', 'YYYY-MM-DD')) TABLESPACE tbs01, PARTITION p_2021 VALUES LESS THAN (TO_DATE('2022-01-01', 'YYYY-MM-DD')) TABLESPACE tbs01, PARTITION p_2022 VALUES LESS THAN (TO_DATE('2023-01-01', ...
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...
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( ...
partition byrange(part_flag)(partition user_p1 values lessthan(2)tablespace user_data,partition user_p2 values lessthan(3)tablespace user_data,partition user_p3 values lessthan(4)tablespace user_data,partition user_p4 values lessthan(5)tablespace user_data,partition user_p5 values lessthan(6)tab...
partition by range(time_id) subpartition by range (time_id) --指定主表分区和子分区分区方式都是:范围分区,并按照列time_id 进行范围划分 ( partition sales_part_1998 values less than (TO_DATE('1999-01-01 00:00:00', 'YYYY-MM-DD HH24:MI:SS')) ...
CREATE TABLE tablename (hid number,hdate date) PARTITION BY RANGE(hdate) INTERVAL (NUMTODSINTERVAL(1, 'DAY')) ( PARTITION p01 VALUES LESS THAN (to_date('2003-1-1','yyyy-mm-dd'))); number类型 number类型:建立的分区表说明100之前的数据放入P01分区中,之后的数据每100放入一个新一个分区,比...
partition by range (SAVE_DATE) ( partition WORKER20230129 values less than (TO_DATE('2023-01-30 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN')) tablespace MYSPACE pctfree 10 initrans 1 maxtrans 255 storage (
PARTITION BY RANGE(TIMEKEY) ( PARTITION PART_1 VALUES LESS THAN ('19970101000000') TABLESPACE TS1, PARTITION PART_2 VALUES LESS THAN ('19970201000000') TABLESPACE TS1, PARTITION PART_3 VALUES LESS THAN ('19970301000000') TABLESPACE TS1, ...