ALTER TABLE hash_example EXCHANGE PARTITION part02 WITH TABLE hash_part02; 这时,分区表hash_example中的part02分区的资料将被转移到hash_part02这个非分区表中。 七、索引 在分区表上可以建立三种类型的索引:1、和普通表一样的全局索引。2、全局分区索引。3、本地分区索引。 它们之间的区别如下图示。 以表ra...
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')...
ALTER TABLE hash_example COALESCE PARTITION ; --subpartition 的语法对于如下 ALTER TABLE diving MODIFY PARTITION us_locations COALESCE SUBPARTITION; 四、 分区合并 1. 合并父分区 ALTER TABLE range_example MERGE PARTITIONS part01_1,part01_2 INTO PARTITION part01 UPDATE INDEXES; 如果省略update indexes子句...
1)partition table example01 exchange partition 1@@@Moving Data from staging table into fact table. @@@ @@@<1>create tbs for index and table. @@@ @@@I use 8k a block, 8k*8=64k, 8k*5=40k, so I use 8 blocks for table storage @@@and use 5 blocks for index storage. SYS@ocp>...
Oracle分区表(Partition Table)的创建及管理 一、创建分区表ITPUB个人空间V"B_X2^.\_Q 分区表分为四类:1、范围分区表2、列表分区表3、哈希分区表4、组合分区表 下面分别创建四类分区表。ITPUB个人空间_Q$g&T_u+V_x!z&b;Q_X 1、范围分区表 CREATE TABLE range_example( %s_b-^_B ]__ B_S0range_...
Oracle分区表(PartitionTable)的创建及管理 一、创建分区表 分区表分为四类:1、范围分区表2、列表分区表3、哈希分区表4、组合分区表 下面分别创建四类分区表。 1、范围分区表 CREATETABLErange_example( range_key_columnDATE, DATAVARCHAR2(20), IDinteger ...
In Oracle Database 11g, a table can have a maximum of 1048575 (1024K – 1) partitions. With the sole exception of tables containing columns of LONG or LONG RAW datatypes, all tables can be partitioned (including columns of type CLOB or BLOB). ...
Working with a partitioned table in Oracle with a st_geometry attribute and spatial index requires going beyond the steps of just creating the partitioned table and local spatial indexes in the databa
PolarDB for PostgreSQL (Compatible with Oracle) automatically routes the operations on data records, such as insertion, update, or deletion, to the relevant partitions based on the partition key. In example 1, logdate is the partition key of the partitioned table named measurement. The bounds ...
oracle分区表的建立方法(Method for establishing Oracle partition table) Oracle provides partitioning techniques to support VLDB (Very, Large, DataBase). The partition table partitions the different columns of the partition column into different partitions by judging the partition column. The partition is...