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Oracle 1Z0-007 Exam Syllabus Topics:

Oracle Introduction to Oracle9i: SQL Sample Questions:

1. Which one is a system privilege?

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

2. Which SELECT statement should you use to extract the year from the system date and display it in the format "1998"?

A) SELECT TO_CHAR(SYSDATE,'yyyy') FROM dual;
B) SELECT TO_CHAR(SUBSTR(SYSDATE, 8,2),'yyyy') FROM dual;
C) SELECT TO_DATE(SYSDATE,'yyyy') FROM dual;
D) SELECT DECODE(SUBSTR(SYSDATE, 8), 'YYYY') FROM dual;
E) SELECT DECODE(SUBSTR(SYSDATE, 8), 'year') FROM dual;

3. What does the TRUNCATE statement do?

A) Removes foreign keys from a table
B) Shortens the table to 10 rows
C) Removes all rows from a table
D) Removes the table
E) Removes all columns from a table

4. STUDENT_ID NUMBER(12)
SEMESTER_END DATE
GPA NUMBER(4,3)
Which statement finds the highest grade point average (GPA) per semester?

A) SELECT MAX(gpa) GROUP BY semester_end WHERE gpa IS NOT NULL FROM student_grades;
B) SELECT MAX(gpa) FROM student_grades WHERE gpa IS NOT NULL GROUP BY semester_end;
C) SELECT MAX(gpa) FROM student_grades GROUP BY semester_end WHERE gpa IS NOT NULL;
D) SELECT MAX(gpa) FROM student_grades WHERE gpa IS NOT NULL;
E) SELECT (gpa) FROM student_grades GROUP BY semester_end WHERE gpa IS NOT NULL;

5. In a SELECT statement that includes a WHERE clause, where is the GROUP BY clause placed in the SELECT statement?

A) Before the WHERE clause
B) After the WHERE clause
C) After the ORDER BY clause
D) Immediately after the SELECT clause
E) Before the FROM clause

Solutions: