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XTTS 最佳实践，包含整个过程的过程、涉及到的脚本等相关信息。Efficient and reliable methods of performing database maintenance—such as by migrating a database to a new platform—have existed for many Oracle software versions. However, as maintenance windows continue to shrink and database sizes continue to grow, the importance placed on the time required to migrate a database to a more reliable or cost-effective platform has grown considerably. Platform migration is the process of moving a database from one operating system platform to a different operating system platform. The supported way to accomplish this in prior releases of the Oracle database was to export the data from the database on the old platform, create a new database on the new platform, and import the data into the new database. This process can take a number of days for a very large database. Oracle Database provides two additional methods of migrating a database to a new platform. Oracle Database 10g Release 2 introduced Transportable Database (TDB), which reduces the amount of time and effort required to migrate a database between platforms that share the same endian format (byte ordering). Oracle Database 10g Release 1 introduced cross-platform transportable tablespaces (XTTS), which allows datafiles to be moved between platforms of different endian format.