[单选]
in your database instance， the STATISTICS_LEVEL initialization parameter is set to BASIC.
What is the impactof this setting（）

A . Optimizer statistics are collected automatically.
B . Only timed operating system （OS） statistics and plan execution statistics are collected.
C . The snapshots for the Automatic Workload Repository （AWR） are not generated automatically.
D . Snapshots cannot be collected manually by using the DBMS_WORKLOAD_REPOSITORY package.
E . The Oracle server dynamically generates the necessary statistics on tables as part of query optimization.

常见的培训方法有哪些它们各有什么优缺点主动运输讲述活动有哪些基本特征？关于施工现场临时照明的说法，正确的是（）。一般场所宜选用额定电压为36V的照明器。灯具离地面高度低于2.5m等场所的照明，电源电压不得大于36V。潮湿和易触及带电体场所的照明，电源电压不得大于36V。金属卤化物灯具的安装高度宜在2m以上。 Given: What is the result?（） s14。 s16。 s10。 Compilation fails.。 An exception is thrown at runtime.。

in your database instance， the STATISTICS_LEVEL initialization parameter is set to BASIC.
What is the impactof this setting（）

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[单选] in your database instance， the STATISTICS_LEVEL initialization parameter is set to BASIC. What is the impactof this setting（）

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[单选]
in your database instance， the STATISTICS_LEVEL initialization parameter is set to BASIC.
What is the impactof this setting（）