目前在线重定义这个功能用到现在自己有用到一下几个目的: 普通表转分区表,表迁移表空间,表回收碎片。 另外我看网上说还可以增加/删除列,这个我就没试过了。 仿伪链接:https://www.cnblogs.com/PiscesCanon/p/15173675.html 实验 本次实验是基于主键的方式来进行的,将普通表转为分区表。 创建实验表。 createt...
Get cloud credits and start using Oracle Cloud services. Sign up now Filtered by:No Filters applied Clear all Trial AI and Machine Learning Data Science Up to 4,700 hours. Build, train, deploy, and manage machine learning models. The platform makes data science collaborative, scalable, and po...
select table_name, partition_name, high_value from user_tab_partitions where table_name='LIST_PART'; alter table list_part split partition p_merged values('a', 'b') into ( partition p1, partition p3 ); select table_name, partition_name, high_value from user_tab_partitions where table_n...
select owner,table_name,blocks,num_rows,avg_row_len,round(((blocks*8/1024)),0) “TOTAL_SIZE”, round((num_rows*avg_row_len /1024/1024),0) “ACTUAL_SIZE”, round(((blocks*8/1024)-(num_rows*avg_row_len/1024/1024)),0) “FRAGMENTED_SPACE” from dba_tables where owner not in (...
For example, click 22.R3_Aug2022_Fusion_CX_Analytics_Tables.html. Tables Without WHO Columns All tables have two system date columns which can be used to get the last refresh dates. The following views based on the data warehouse tables don't have the WHO columns: • DW_BUSINESS_UNIT_...
exp userid=... tables=tab1 rows=n file=tab1.dmp strings emp.dmp >emp.sql 1. 2. emp.sql中就有DLL语句了 三、通过9i的DBMS_METADATA包得到DLL语句 基本上用到的语法如下: a. 获取单个的建表和建索引的语法 set heading off; set echo off; ...
String suffix= targetName.substring(targetName.lastIndexOf("_")+1);if(StringUtils.isNumber(suffix)) { // hint分片算法的ShardingValue有两种具体类型: ListShardingValue和RangeShardingValue,取决于io.shardingjdbc.core.api.HintManager.addDatabaseShardingValue(String, String, ShardingOperator, Comparable<?>...
All compute instances use boot volumes as their system disk. Additional storage and boot volumes are billed at the standard block volumes service pricing. Note, that this is in addition to the price of the compute instance. E3, E4, E5, X9, and A1 instances support resource-based pricing. ...
CREATE TYPE person_list_typ AS TABLE OF person_typ;/ SELECT CAST(COLLECT(contact) AS person_list_typ) FROM contacts; SQL CASTファンクションの詳細は、『Oracle Database SQL言語リファレンス』を参照してください。 CURSOR CURSOR式は、ネストしたカーソルを戻します。この形式の式は、PL/SQ...
If you have worked with MySQL, you may be familiar with theSHOW TABLEScommand that lists all tables in a database: SHOWTABLES;Code language:SQL (Structured Query Language)(sql) Unfortunately, Oracledoes notdirectly support theSHOW TABLEScommand. However, you can list all tables in a database...