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发布时间：2019-05-30 16:59:56
examine this command:which two statements are true?b) the alert log still contains some ddl statements.d) all data definition language (ddl) statements are written to the control file.f) some ddl statements are written to an xml file in the adr home.(解析： 打开 ddl 跟踪后，要.........
发布时间：2019-05-30 13:29:19
which three statements are true about the purpose of checkpoints?b) they ensure that dirty buffers in the buffer cache are written to disk regularly.d) they ensure that all the dirty buffers are written to disk during a normal shutdown.answer：bcd......
发布时间：2019-05-30 10:31:52
which three statements are true about a job chain?b) it cannot invoke the same program or nested chain in multiple steps in the chain.d) it can be executed using event-based schedules.f) it cannot have more than one dependency.(解析：job chain可以基于时间、事件或者基于依赖行的工作.........
发布时间：2019-05-28 13:05:34
which two services may you see on the my service dashboard page?b) network cloud serviced) compute cloud service(解析：这道题考的是oracle云服务相关的问题，超出了数据库知识点的范畴，有点宣传产品的目的。如果您注册了一个支持通用信用的付费oracle云帐户(通过oracle销售或您自己)，或者如果您是.........
发布时间：2019-05-28 10:03:56
which two must be installed or configured either manually or by dbca in order to use enterprisea) at least one tcp/ip dispatcher must be configured.c) a port number for oracle http server must be configured.e) the apex_public_user role must be granted to sysman.(解析：em express使.........