1.DBMS_JOB这个包不再被支持

The DBMS_JOB package is deprecated, and may be desupported in a future release.

2.在12c R2之后版本中Non-CDB架构不再被支持

The non-CDB architecture was deprecated in Oracle Database 12c. It can be desupported and unavailable in a release after Oracle Database 12c Release 2.http://www.cndba.cn/Expect-le/article/2329http://www.cndba.cn/Expect-le/article/2329http://www.cndba.cn/Expect-le/article/2329http://www.cndba.cn/Expect-le/article/2329

3.V$MANAGED_STANDBY视图不再支持，Oracle建议使用V$DATAGUARD_PROCESS视图

The V$MANAGED_STANDBY view is deprecated in Oracle Database 12c release 2 (12.2.0.1). Oracle recommends that you use the new view V$DATAGUARD_PROCESS.http://www.cndba.cn/Expect-le/article/2329http://www.cndba.cn/Expect-le/article/2329

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