轻油罐和球罐相比较哪一个对消除油品小呼吸有很大作用（） 球罐。 轻油罐。 两罐都可以。
下列关于分封制的论述不正确的是（）。 分封制是西周分封诸侯的制度。 西周统治者为巩固统治而采取的政治措施。 分封制使周朝巩固了统治，扩大了疆域。 分封制取代了王位世袭制。
Which three components does the Scheduler use for managing tasks within the Oracle environment？（） a job。 a program。 a schedule。 a PL/SQL procedure。
Which two are true concerning a multitenant container database with three pluggable database?（） All administration tasks must be done to a specific pluggable database.。 The pluggable databases increase patching time.。 The pluggable databases reduce administration effort.。 The pluggable databases are patched together.。 Pluggable databases are only used for database consolidation.。
While designing your database， you have created the EMPLOYEEStable as an index-organized （IOT）. You want to create a bitmap index on the JOD_IDcolumn to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（） A primary key must have been created.。 A mapping table must have been created.。 An overflow tablespace must have been specified.。 The PCTTHRESHOLD option must have been specified.。
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