You have created a resource plan， DB_PLAN， using DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_PLAN and you want to impose a restriction on utilization of resources by the database users. Which step must be performed before you can start using the resource plan？（） assign users to consumer groups。 set the resource plan for the instance。 configure a simple resource plan and specify plan directives。 configure a complex resource plan and specify plan directive。
吴某，男性，20岁，头颈面部及胸腹部烧伤，其烧伤面积是（） 18%。 22%。 25%。 30%。 35%。
The EMPLOYEE tables has these columns: You want to display the name and annual salary multiplied by the commission_pct for all employees. For records that have a NULL commission_pct, a zero must be displayed against the calculated column. Which SQL statement displays the desired results?（） SELECT last_name, (salary * 12) * commission_pct FROM EMPLOYEES;。 SELECT last_name, (salary * 12) * IFNULL(commission_pct, 0) FROM EMPLOYEES;。 SELECT last_name, (salary * 12) * NVL2(commission_pct, 0) FROM EMPLOYEES;。 SELECT last_name, (salary * 12) * NVL(commission_pct, 0) FROM EMPLOYEES。
You plan to use SQL Performance Analyzer to analyze the SQL workload. You created a SQL Tuning Set as a part of the workload capturing. What information is captured as part of this process？（） the SQL text。 the execution plan。 the execution context。 the execution frequency。 the system change number （SCN）。
液压泵的工作压力是指泵工作时输出油液的（）压力。 最高。 额定。 实际。 负载。
（）、残疾人联合会应当在各自工作范围内，组织开展家庭美德和反家庭暴力宣传教育。
