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Oracle 1Z0-007 Exam Syllabus Topics:

Section	Objectives
Topic 1: Producing Readable Output with iSQL*Plus	- Script files - Substitution variables
Topic 2: Subqueries	- Single–row and multiple–row subqueries - Define subqueries
Topic 3: Single–Row Functions	- Use character, number, and date functions in SELECT statements - Use conversion functions
Topic 4: Creating Other Database Objects	- Indexes - Sequences - Synonyms
Topic 5: Creating Views	- DML through views - Create, alter, drop views
Topic 6: Restricting and Sorting Data	- Sort rows retrieved by a query - Limit rows retrieved by a query
Topic 7: Manipulating Data	- INSERT rows - MERGE rows - UPDATE rows - DELETE rows
Topic 8: Displaying Data from Multiple Tables	- Self–join - Outer joins - Equality and nonequality joins
Topic 9: Writing Basic SQL SELECT Statements	- Capabilities of SQL SELECT statements - Execute a basic SELECT statement - Differentiate between SQL and iSQL*Plus commands

Oracle Introduction to Oracle9i: SQL Sample Questions:

Question 1

Examine the structure of the EMPLOYEES and NEW_EMPLOYEES tables:

Which DELETE statement is valid?

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

Question 2

SELECT *
From orders;
You use this statement to retrieve data from a data table for __________. (Choose all that apply)

A. Viewing
B. Updating
C. Truncating
D. Inserting
E. Deleting

Question 3

Examine the structure of the EMPLOYEES, DEPARTMENTS, and TAX tables.

For which situation would you use a nonequijoin query?

A. To find the number of employees working for the Administrative department and earning less then 4000.
B. To list the name, job id, and manager name for all the employees.
C. To find the name, salary, and department name of employees who are not working with Smith.
D. To display name, salary, manager ID, and department name of all the employees, even if the employees do not have a department ID assigned.
E. To find the tax percentage for each of the employees.

Question 4

Examine the structures of the EMPLOYEES and TAX tables.

You need to find the percentage tax applicable for each employee. Which SQL statement would you use?

A. SELECT employee_id, salary, tax_percent FROM employees e, tax t WHERE MIN(e.salary) = t.min_salary AND MAX(e.salary) = t.max_salary
B. SELECT employee_id, salary, tax_percent FROM employees e, tax t WHERE e.salary BETWEEN t.min_salary AND t.max_salary;
C. You cannot find the information because there is no common column between the two tables.
D. SELECT employee_id, salary, tax_percent FROM employees e, tax t WHERE e.salary > t.min_salary, tax_percent

Question 5

Examine the description of the EMPLOYEES table:

Which statement shows the department ID, minimum salary, and maximum salary paid in that department, only of the minimum salary is less then 5000 and the maximum salary is more than 15000?

A. SELECT dept_id, MIN(salary(, MAX(salary)
FROM employees
WHERE MIN(salary) < 5000 AND MAX(salary) > 15000;
B. SELECT dept_id, MIN(salary), MAX(salary)
FROM employees
GROUP BY dept_id, salary
HAVING MIN(salary) < 5000 AND MAX(salary) > 15000;
C. SELECT dept_id, MIN(salary), MAX(salary)
FROM employees
GROUP BY dept_id
HAVING MIN(salary) < 5000 AND MAX(salary) > 15000;
D. SELECT dept_id, MIN(salary), MAX(salary)
FROM employees
HAVING MIN(salary) < 5000 AND MAX(salary) > 15000;
E. SELECT dept_id, MIN(salary), MAX(salary)
FROM employees
WHERE MIN(salary) < 5000 AND MAX(salary) > 15000
GROUP BY dept_id;