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全部博文（487）
发布时间：2019-05-28 09:27:31
Examine the details of the uncompressed, non-partitioned heap table CITIES.CITYID NOT NULL NUMBER (4)Examine the command:What must you do before executing it?B) Disable all indexes .........【阅读全文】
发布时间：2019-05-09 14:32:20
Your database instance is started by using a server parameter file (SPFILE). You execute the following command to change the value of the LOG_BUFFER initialization parameter:What is the outcome of this command?B) The parameter value is changed and it comes into effect at the next instance .........【阅读全文】
发布时间：2019-04-29 13:30:57
Your database is running in ARCHIVELOG mode.Which two statements are true in this scenario?B) The database must be in MOUNT state to take consistent RMAN backups.D) The database instance must be shut down to take a user-managed consistent backup.Answer：BD......【阅读全文】
发布时间：2019-04-29 10:14:11
Which three statements are true about Oracle checkpoint processing?B) Frequent thread checkpoints can degrade database performance.D) It reduces the recovery time from instance failures.Answer：BCD......【阅读全文】
发布时间：2019-04-29 09:27:26
Your database is configured for ARCHIVELOG mode, and a daily full database backup is taken.In which three scenarios do you need media recovery?B) abnormal termination of the database instanceD) loss of a data file that belongs to the active undo tablespaceF) loss of all the copies .........【阅读全文】
