上述命令支持完整数据库备份的数据库恢复，不支持表空间级别的数据库恢复。

SQL2560N The target database is not identical to the source database for a restore from a table space level backup.

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维护和跟踪这些完整备份是一种耗时的任务，所需空间可能会超过完整数据库备份的所需空间。

Maintaining and keeping track of a complete set of these backups can be a time-consuming task that might outweigh the space requirements of full database backups.

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