摘要：本文介绍使用RMAN的方法将本地Oracle Database 12c数据库转换和迁移到在不同平台上运行的Oracle Database 12c DBaaS。

This article covers the RMAN method to convertand migrate on-premises Oracle Database 12c databases to an Oracle Database 12cDBaaS that run on different platforms.

In this article, you learn how to convert thedata files of an on-premises Oracle Database 12c PDB or PDB tablespaces torestore them into the Oracle Database 12c DBaaS database using various modes.

本文讲述如何转换内部部署的Oracle Database 12c PDB或PDB表空间的数据文件，以使用各种模式将它们还原到Oracle Database 12c DBaaS数据库中。

Migrate On-premises Tablespaces to DBaaSDatabase Using Cross-Platform Tablespace transport

将内部表空间迁移到DBaaSDatabase使用跨平台表空间传输

This section explains how to transport tablespaces of an on-premises  database that runs on one platform into the DBaaS database that runs on a different platform. The section therefore explains how to backup tablespaces of the on-premises database, convert the data files and restore them into the existing PDB1 PDB of the DBaaS ORCL CDB.

首先我们来看如何备份内部部署数据库的表空间，转换数据文件并将其恢复到DBaaS ORCL CDB的现有PDB1 PDB中。

Backup the On-premises PDB Tablespaces

1.To backup the on-premises tablespaces ofthe PREM_PDB PDB in cross-platform tablespace transport mode, you must set thetablespaces to READ ONLY mode.

要以跨平台表空间传输方式备份PREM PDB PDB的内部表空间，必须将表空间设置为READ ONLY模式。

2.- Retrieve the platform name of the DBaaSdatabase. Connect to the DBaaS database.

2.检索DBaaS数据库的平台名称， 连接到DBaaS数据库。

3.- Backup the TBS_1 and TBS_2 tablespaces ofthe on-premises PREM_PDB PDB.

3、备份本地PREM PDB PDB的TBS_1和TBS_2表空间。

Note: The TO PLATFORM clause converts the datafiles on the on-premises platform. When you will have transferred the files,they will be ready to be plugged into the DBaaS PDB.

注意：TO PLATFORM子句转换内部部署平台上的数据文件，传输文件时，它们将准备插入DBaaS PDB。

Transfer the Files of theOn-premises Platform to the DBaaS VM

 将本地平台的文件传输到DBaaS VM

Use SCP to transfer the backup set and dumpfile securely from the on-

premises platform (/on-premises  directory) to the DBaaS VM (/DBaaSdirectory). 

使用SCP将备份集和转储文件从内部部署平台（/本地目录）安全地传输到DBaaS VM（/ DBaaSdirectory）。

Restore the Files into the DBaaS PDB

1.- Restore the TBS_1 and TBS_2 tablespaces of the on-premises PREM_PDB PDB into the DBaaS PDB1 PDB.

2.- Display the names of the data files of the transported tablespaces into the DBaaS PDB.

2.-将传输的表空间的数据文件的名称显示到DBaaS PDB中。

3.- Set the transported tablespaces read writein the DBaaS PDB.

3.-在DBaaS PDB中设置传输的表空间读写。

4.- If you intend to work with the on-premisestablespaces, set them back to read write.

4.-如果您打算使用本地表空间，请将它们重新设置为读写。

5.- Display the names of the data files of thetransported tablespaces from the on-premises PDB.

5.-从内部部署的PDB显示传输的表空间的数据文件的名称。

Summary

You can convert and migrate on-premisesnon-CDBs and PDBs before migrating them into the DBaaS database that run ondifferent platforms.

在将其迁移到在不同平台上运行的DBaaS数据库之前，可以转换和迁移本地非CDB和PDB。

In this article, you learned to:

Transport tablespaces of an on-premises PDBthat runs on one platform into the DBaaS CDB that runs on a different platform

Wehope this article can be helpful for you and see us on next one。

希望文章对你有帮助，请期待我们后期的持续分享。