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Oracle 1Z0-007 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Group Functions and Aggregation | - Aggregate functions (COUNT, SUM, AVG, MIN, MAX) - HAVING clause - GROUP BY clause |
| Advanced SQL Concepts | - Pseudocolumns and expressions - Set operators (UNION, INTERSECT, MINUS) |
| Data Retrieval Using SQL | - Sorting results with ORDER BY - Filtering data with WHERE clause - SELECT statements |
| Data Manipulation and Schema Objects | - Constraints and integrity rules - INSERT, UPDATE, DELETE statements - CREATE, ALTER, DROP statements |
| Joins and Subqueries | - Outer joins - Equijoins and non-equijoins - Subqueries (single-row and multi-row) |
| Single-Row Functions | - Conversion functions - Character functions - Date functions - Number functions |
| Relational Database and SQL Fundamentals | - Understanding relational database concepts - SQL language overview |
Oracle Introduction to Oracle9i: SQL Sample Questions:
Question 1
Which view should a user query to display the columns associated with the constraints on a table owned by the user?
A. USER_COLUMNS
B. USER_CONSTRAINTS
C. ALL_CONSTRAINTS
D. USER_CONS_COLUMNS
E. USER_OBJECTS
Question 2
Examine the structure of the EMPLOYEES and DEPARTMENTS tables:
Evaluate this SQL statement:
SELECT employee_id, e.department_id, department_name,
Salary
FROM employees e, departments d
WHERE e.department_id = d.department_id;
Which SQL statement is equivalent to the above SQL statement?
A. SELECT employee_id, department_id, department_name,
Salary
FROM employees
JOIN departments
USING (e.department_id, d.department_id);
B. SELECT employee_id, d.department_id, department_name,
Salary
FROM employees e
JOIN departments d
ON e.department_id = d.department_id;
C. SELECT employee_id, department_id, department_name, Salary FROM employees WHERE department_id IN (SELECT department_id FROM departments);
D. SELECT employee_id, department_id, department_name,
Salary
FROM employees
NATURAL JOIN departments;
Question 3
Which SQL statement accepts user input for the columns to be displayed, the table name, and WHERE condition?
A. SELECT &1, "&2"
FROM &3
WHERE last_name = '&4';
B. SELECT &1, &2
FROM &3
WHERE last_name = '&4';
C. SELECT &1, '&2'
FROM EMP
WHERE last_name = '&4';
D. SELECT &1, '&2'
FROM &3
WHERE '&last_name = '&4' ';
Question 4
What is true about updates through a view?
A. When you update a view the constraints on the views always override the constraints on the underlying tables.
B. When you update a view only the constraints on the underlying table will be in effect.
C. You cannot update a view with group functions.
D. When you update a view group functions are automatically computed.
Question 5
You added a PHONE_NUMBER column of NUMBER data type to an existing EMPLOYEES table. The EMPLOYEES table already contains records of 100 employees. Now, you want to enter the phone numbers of each of the 100 employees into the table.
Some of the employees may not have a phone number available.
Which data manipulation operation do you perform?
A. MERGE
B. You cannot enter the phone numbers for the existing employee records.
C. UPDATE
D. ENTER
E. INSERT
F. ADD
Solutions:
| Question 1 Answer: D | Question 2 Answer: B | Question 3 Answer: B | Question 4 Answer: C | Question 5 Answer: C |




