Examine the description of the EMPLOYEES table: EMP_ID NUMBER(4) NOT NULL LAST_NAME VARCHAR2(30) NOT NULL FIRST_NAME VARCHAR2(30) DEPT_ID NUMBER(2) JOB_CAT VARCHARD2(30) SALARY NUMBER(8,2) Which statement shows the maximum salary paid in each job category of each department? （） SELECT dept_id, job_cat, MAX(salary) FROM employees WHERE salary > MAX (salary);。 SELECT dept_id, job_cat, MAX(salary) FROM employees GROUP BY dept_id,job_cat;。 SELECT dept_id, job_cat, MAX(salary) FROM employees;。 SELECT dept_id, job_cat, MAX(salary) FROM employees GROUP BY dept_id;。 SELECT dept_id, job_cat, MAX(salary) FROM employees GROUP BY dept _ id job _ cat salary。
建筑工程中，（）代表了工程某一施工过程的材料、构配件或安装项目的质量。 单位工程。 分项工程。 检验批。 分部工程。
You have a request to put together IBM System x and blade servers attached to IBM DS4000 Storage： all in a rack. Your customer is also requesting services. What IBM resource will help you put these different products together？（） IBM System x and BladeCenter Business Partner Guidebook。 IBM Sizing Guides。 IBM Configuration & Options Guide （COG）。 IBM Standalone Solutions Configuration Tool （SSCT）。
Which of the following are prerequisite steps to transport a database？（） Query the V$TRANSPORTABLE_PLATFORMS view in the source database to determine if the intended destination is listed.。 Verify that there are no restrictions or limitations that the source or destination database may encounter.。 Verify that the source and destination have the same Oracle version critical updates，patch-set version，and patch- set exceptions.。 Determine if you will perform the conversion on the source or destination platform. 。 None of the above.。
男性，75岁。因胃癌行胃癌根治术，术后7d用力排便时突然出现腹痛，伤口敷料被血性渗液浸透，此时应考虑（） 切口感染。 切口裂开。 腹腔内出血。 肠破裂。 切口血肿。
User SCOTT executes the following command on the EMP table but has not issued COMMIT， ROLLBACK， or any data definition language （DDL） command： SQL> SELECT ename FROM emp
2 WHERE job=’CLERK’ FOR UPDATE OF empno；
SCOTT has opened another session to work with the database instance.
Which three operations wouldwait when issued in SCOTT’s second session（）
