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Oracle 1Z0-007 Exam Syllabus Topics:

Oracle Introduction to Oracle9i: SQL Sample Questions:

1. Which SQL statement returns a numeric value?

A) SELECT ADD_MONTHS(MAX(hire_Date), 6) FROM EMP;
B) SELECT TO_NUMBER(hire_date + 7) FROM EMP;
C) SELECT sysdate-hire_date FROM EMP;
D) SELECT ROUND(hire_date) FROM EMP;

2. Which one is a system privilege?

A) ALTER TABLE
B) DELETE
C) CREATE TABLE
D) SELECT
E) EXECUTE

3. Examine the structure of the EMPLOYEES and NEW_EMPLOYEES tables:

Which DELETE statement is valid?

A) DELETE FROM employees
WHERE employee_id IN (SELECT employee_id
FROM new_employees
WHERE name = 'Carrey');
B) DELETE FROM employees
WHERE employee_id = (SELECT employee_id FROM employees);
C) DELETE * FROM employees
WHERE employee_id=(SELECT employee_id FROM new_employees);
D) DELETE * FROM employees
WHERE employee_id IN (SELECT employee_id
FROM new_employees
WHERE name = 'Carrey');

4. Which two statements complete a transaction? (Choose two)

A) DELETE employees;
B) Select MAX(sal)
FROM employees
WHERE department_id = 20;
C) DESCRIBE employees;
D) GRANT SELECT ON employees TO SCOTT;
E) ROLLBACK TO SAVEPOINT C;
F) ALTER TABLE employees
SET UNUSED COLUMN sal;

5. Examine the structure of the EMP_DEPT_VU view:

Which SQL statement produces an error?

A) SELECT department_id, job_id, AVG(salary)
FROM emp_dept_vu
GROUP BY department_id, job_id;
B) SELECT job_id, SUM(salary)
FROM emp_dept_vu
WHERE department_id IN (10,20)
GROUP BY job_id
HAVING SUM(salary) > 20000;
C) None of the statements produce an error; all are valid.
D) SELECT *
FROM emp_dept_vu;
E) SELECT department_id, SUM(salary)
FROM emp_dept_vu
GROUP BY department_id;

Solutions: