从Oracle 8开始，ROWID的格式和大小从8字节更改为10个字节.请注意，ROWID的格式将在您重新组织或导出/导入表.如果是分区表，则在UPDATE期间如果行从一个分区迁移到另一个分区，它也会更改."

"From Oracle 8 the ROWID format and size changed from 8 to 10 bytes. Note that ROWID's will change when you reorganize or export/import a table. In case of a partitioned table, it also changes if the row migrates from a partition to another one during an UPDATE."

http://www.orafaq.com/wiki/ROWID

我会拒绝.如果例如应用程序临时存储ROWID(例如，生成一个可选择项的列表，每个项用ROWID标识，但是该列表将定期重新生成而不存储)，则这可能是安全的.但是，如果以任何持久方式使用ROWID，那都是不安全的.

I'd say no. This could be safe if for instance the application stores ROWID temporarily(say generating a list of select-able items, each identified with ROWID, but the list is routinely regenerated and not stored). But if ROWID is used in any persistent way it's not safe.