partition part_1valuesless than (5), partition part_2valuesless than (10) )--创建局部前缀索引;分区键(id)作为索引定义的第一列createindexlocal_prefixed_indexonlocal_index_example (id, name) local;--创建局部非前缀索引;分区键未作为索引定义的第一列createindexlocal_nonprefixed_indexonlocal_index_...
create table local_index_example ( id number(2), name varchar2(50), sex varchar2(10) ) partition by range (id) ( partition part_1 values less than (5), partition part_2 values less than (10) ) –创建局部前缀索引;分区键(id)作为索引定义的第一列 create index local_prefixed_index on...
介绍Oracle分区表、分区索引的原理、应用场景和日常维护,以及分区表在数据库性能优化中的重要意义, 熟练通透地学习Oracle分区表的创建、维护、分区裁剪等。 课程简介 oracle分区表是Oracle日常开发、管理、性能优化非常重要的技术手段,当数据库表段达到或大于2GB时,Oracle强烈推荐使用分区表技术,Oracle分区表能够提升数据库...
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')...
Local and global indexes can be created on a subset of the partitions of a table. Partial indexes provide more flexibility in index creation for partitioned tables. For example, index segments can be omitted for the most recent partitions to ensure maximum data ingest rates without impacting the...
以表range_example为例。1.建立普通的索引create index com_index_range_example_id on range_example(id); 2.建立本地分区索引create index local_index_range_example_id on range_example(id)local; 3.建立全局分区索引create index gidx_range_exampel_id on range_example(id)GLOBAL partition by range(id...
22、m ordinary tables into partitioned tables. You can refer to this example: /post/468/13091The second point is that if you use the local partition index, then the tablespace of the index partition is not controllable at the time the table partition is added. If you want to separate tab...
Create a local index on a partitioned table. CREATE INDEX IDX_SYS_LOGS_LOC ON SYSTEM_LOGS (EVENT_DATE) LOCAL (PARTITION EVENT_DATE_1, PARTITION EVENT_DATE_2, PARTITION EVENT_DATE_3); Create a global index on a partitioned table. ...
create tablespace tbs1; create tablespace tbs2; create tablespace tbs3; create table members ( id number, name varchar2(32), create_time date) partition by range(create_time) ( partition p1 values less than (to_date('2023-02-01', 'yyyy-mm-dd')) tablespace tbs1, -- 指定分区p1放在tbs...
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')), ...