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。
对大体积混凝土进行二次振捣的目的是（）。 提高混凝土与钢筋的握裹力。 增加混凝土的密实度。 提高混凝土抗压强度。 提高抗裂度。
（）、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。 人社局。 工会。 共产主义青年团。 妇女联合会。
Select three true statements regarding Coherence（） Coherence provides stronger data management than an Application Server。 Coherence provides better scale-out performance than a Application Server。 Coherence provides better scale-out performance than a Database Server。 Coherence provides better througput than a JMS messaging server Coherence provides stronger configuration management than Grid Control。
电伴热系统可使各种管线和容器内的液体在冬天时温度维持在（）左右，从而保证液体不冻结，管线不堵塞 5℃。 6℃。 7℃。 8℃。
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？（）
