Topic: Oracle Certified Professional Exams (OCP & OCA) >> Which SQL statement produces an error?
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| Title: Which SQL statement produces an error? |
| naidu |
Posted: Dec 27, 2006 10:04:44 AM |
Total Post: 85
Joined: Nov, 2006
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Examine the structure of the EMP_DEPT_VU view:
Column Name Type Remarks
EMPLOYEE_ID NUMBER From the EMPLOYEES table
EMP_NAME VARCHAR2 (30) From the EMPLOYEES table
JOB_ID VARCHAR2 (20) From the EMPLOYEES table
SALARY NUMBER From the EMPLOYEES table
DEPARTMENT_ID NUMBER From the DEPARTMENTS table
DEPT_NAME VARCHAR2 (30) From the DEPARTMENTS table
Which SQL statement produces an error?
A. SELECT *
FROM emp_dept_vu;
B. SELECT department_id, SUM (salary)
FROM emp_dept_vu
GROUP BY department_id;
C. SELECT department_id, job_id, AVG (salary)
FROM emp_dept_vu
GROUP BY department_id, job_id;
D. SELECT job_id, SUM (salary)
FROM emp_dept_vu
WHERE department_id IN (10, 20)
GROUP BY job_id
HAVING SUM (salary) > 20000;
E. None of the statements produce an error; all are valid.
Answer:
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 Jayanta |
| Posted: Dec 27, 2006 11:01:55 AM |  |
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Total Post: 479
Joined: Feb, 2006
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