Oracle 1Z0-007

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Oracle Introduction to Oracle9i: SQL Sample Questions:

1. Which are /SQL*Plus commands? (Choose all that apply.)

A) RENAME
B) DESCRIBE
C) DELETE
D) INSERT
E) SELECT
F) UPDATE

2. The EMP table contains these columns:

You need to display the employees who have not been assigned to any department.
You write the SELECT statement:
SELECT LAST_NAME, SALARY, DEPARTMENT_ID
FROM EMP
WHERE DEPARTMENT_ID = NULL;
What is true about this SQL statement?

A) The operator in the WHERE clause should be changed to display the desired results.
B) The column in the WHERE clause should be changed to display the desired results.
C) The WHERE clause should be changed to use an outer join to display the desired results.
D) The SQL statement displays the desired results.

3. What is true about the WITH GRANT OPTION clause?

A) It allows the grantee to grant object privileges to other users and roles.
B) It allows privileges on specified columns of tables.
C) It allows a grantee DBA privileges.
D) It is used to grant an object privilege on a foreign key column.
E) It is required syntax for object privileges.

4. The STUDENT_GRADES table has these columns:
STUDENT_ID NUMBER (12)
SEMESTER_END DATE
GPA NUMBER (4,3)
The register has requested a report listing the students' grade point averages (GPA), sorted from highest grade point average to lowest within each semester, starting from the earliest date. Which statement accomplishes this?

A) SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester_end ASC, gpa ASC;
B) SELECT student_id, semester_end, gpa FROM student_grades ORDER BY gpa DESC, semester_end DESC;
C) SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester_end DESC, gpa DESC;
D) SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester_end, gpa DESC;
E) SELECT student_id, semester_end, gpa FROM student_grades ORDER BY gpa DESC, semester_end ASC;

5. The EMPLOYEE tables have 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?

A) SELECT last_name, (salary * 12) * IFNULL(commission_pct, 0) FROM EMPLOYEES;
B) SELECT last_name, (salary * 12) * NVL(commission_pct, 0) FROM EMPLOYEES;
C) SELECT last_name, (salary * 12) * NVL2(commission_pct, 0) FROM EMPLOYEES;
D) SELECT last_name, (salary * 12) * commission_pct FROM EMPLOYEES;

Solutions: