You are managing a 24*7 database. The backup strategy for the database is to perform user-managed backups. Identify two prerequisites to perform the backups.()
- A、 The database must be opened in restricted mode.
- B、 The database must be configured to run in ARCHIVELOG mode.
- C、 The tablespaces are required to be in backup mode before taking the backup.
- D、 The tablespaces are required to be in read-only mode before taking the backup
正确答案:B,C
答案解析:有
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