Consider this RMAN command： RMAN> CONFIGURE RETENTION POLICY CLEAR； What is the effect of this command？（）
- A、Backups will never expire.
- B、It removes any retention policy.
- C、The DELETE OBSOLETE command will fail with an error.
- D、It sets the retention policy to the default of REDUNDANCY 1.
正确答案:D
答案解析:有
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