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Oracle Introduction to Oracle9i: SQL Sample Questions:

1. Which statement creates a new user?

A) CREATE NEW USER susan DEFAULT;
B) CREATE USER susan;
C) CREATE OR REPLACE USER susan;
D) CREATE NEW USER susan IDENTIFIED by blue;
E) CREATE OR REPLACE USER susan IDENTIFIED BY blue;
F) CREATE USER susan IDENTIFIED BY blue;

2. Which statement describes the ROWID data type?

A) Binary data up to 4 gigabytes.
B) Character data up to 4 gigabytes.
C) A hexadecimal string representing the unique address of a row in its table.
D) Binary data stored in an external file, up to 4 gigabytes.
E) Raw binary data of variable length up to 2 gigabytes.

3. In which two cases would you use an outer join? (Choose two.)

A) The tables being joined have both matched and unmatched data.
B) The columns being joined have NULL values.
C) The tables being joined have NOT NULL columns.
D) The tables being joined have only matched data.
E) Only when the tables have a primary key/foreign key relationship.
F) The tables being joined have only unmatched data.

4. The STUDENT_GRADES table has these columns
STUDENT_ID NUMBER(12)
SEMESTER_END DATE
GPA NUMBER(4,3)
Which statement finds students who have a grade point average (GPA) greater than 3.0 for the calendar year 2001?

A) SELECT student_id, gpa
FROM student_grades
WHERE semester_end BETWEEN '01-JAN-2001' AND '31-DEC-2001'
AND gpa > 3.0;
B) SELECT student_id, gpa
FROM student_grades
WHERE semester_end > '01-JAN-2001' OR semester_end < '31-DEC-2001' AND gpa >= 3.0;
C) SELECT student_id, gpa
FROM student_grades
WHERE semester_end BETWEEN '01-JAN-2001' AND '31-DEC-2001'
OR gpa > 3.;
D) SELECT student_id, gpa
FROM student_grades
WHERE semester_end BETWEEN '01-JAN-2001' AND '31-DEC-2001'
OR gpa > 3.0;
E) SELECT student_id, gpa
FROM student_grades
WHERE semester_end BETWEEN '01-JAN-2001' AND '31-DEC-2001'
AND gpa gt 3.0;

5. Which SQL statement generates the alias Annual Salary for the calculated column SALARY*12?

A) SELECT ename, salary*12 "Annual Salary" FROM employees;
B) SELECT ename, salary*12 'Annual Salary' FROM employees;
C) SELECT ename, salary*12 AS INITCAP("ANNUAL SALARY") FROM employees
D) SELECT ename, salary*12 AS Annual Salary FROM employees;

Solutions: