To use this technique, you must specify the source in a CREATE PLUGGABLE DATABASE statement. The source can be a local or remote PDB. The target PDB is the copy of the source PDB. The copy is called a clone PDB.

Oracle 18c allows you to duplicate a pluggable database (PDB) from one container database (CDB) instance to another existing CDB instance using RMAN. There are alternatives, like hot cloning. Oracle 12c introduced RMAN new features to allow the duplication of PDBs to a CDB, where the new CDB was initially created as an auxiliary instance.

2021年1月25日 · Cloning a local PDB. This is the easiest method of cloning a PDB. You create a copy (a clone) of a PDB within the same CDB. You specify the source PDB in the FROM clause of the create pluggable database statement. You must be connected to the root container or the application root when executing the statement.

2023年11月30日 · A PDB snapshot is a point-in-time copy of a PDB. The source PDB can be open read-only or read/write while the snapshot is created. You can create snapshots manually using the SNAPSHOT clause of CREATE PLUGGABLE DATABASE (or ALTER PLUGGABLE DATABASE), or automatically using the EVERY interval clause.

This 15-minute tutorial shows you how to clone a pluggable database (PDB) into an existing opened read/write container database (CDB) by using the Recovery Manager (RMAN) DUPLICATE command without the use of a fresh auxiliary instance.

2019年6月12日 · 在12.2版本以前，如果要克隆pdb或non-CDB，需要先将源pdb或者non-CDB关闭或者置于read-only模式，不过12.2开始及不需要了，可以在不影响源端使用的情况下进行在线clone。

2021年6月2日 · We can clone a PDB using snapshots of the underlying storage via the SNAPSHOT COPY clause of the CREATE PLUGGABLE DATABASE statement. Performing PDB clones using a snapshot copy reduces the time required to create the clone because it does not include a complete copy of the source data files.

2019年11月13日 · 本文详细介绍了Oracle数据库中PDB的本地与远程克隆方法，包括克隆的注意事项、表空间选择及无数据克隆。 此外，还深入探讨了可刷新复制的概念、配置及操作流程。 本地克隆非常简单,一条命令: Pluggable database created. 其中file_name_convert指定了文件目录的转换,其实 oracle 只是简单的对目录名进行了替换. 使用远程克隆的先决条件是:oracle版本是12.2以上,开启归档模式以及本地undo.在克隆的时候原库可以为读写. 1.兼容性检查. 建议在克隆PDB之 …

文章介绍了在Oracle数据库的CDB环境中如何克隆PDB，包括检查源数据库的状态（如归档模式、本地UNDO）、字符集兼容性、字节顺序，以及在源和目标数据库中创建用户和数据链，最后详细阐述了克隆过程和可能出现的问题，如权限不足。 Oracle 数据库新的版本增加新特性，即称为容器数据库，又称可插入数据库或多租户容器数据库；根数据库容器称为CDB;指的是可以容纳一个或者多个可插拔数据库的数据库，这个特性允许在CDB容器数据库中创建并且维护多个数据库， …

In this article we will clone a pluggable database from existing PDB ( PROD), residing on the same container. First start the PDB in read only , which need to be cloned. Session altered. Pluggable Database closed. Pluggable Database opened. …