1Z1-047 무료 덤프문제 온라인 액세스

View the Exhibit and examine PRODUCTS and ORDER_ITEMS tables.
You executed the following query to display PRODUCT_NAME and the number of times the product has been ordered:
SELECT p.product_name, i.item_cnt FROM (SELECT product_id, COUNT (*) item_cnt FROM order_items GROUP BY product_id) i RIGHT OUTER JOIN products p ON i.product_id = p.product_id; What would happen when the above statement is executed?

• A.The statement would execute successfully to produce the required output.
• B.The statement would not execute because the GROUP BY clause cannot be used in the inline view.
• C.The statement would not execute because inline views and outer joins cannot be used together.
• D.The statement would not execute because the ITEM_CNT alias cannot be displayed in the outer query.

View the Exhibit and examine the data in the EMPLOYEES tables.
Evaluate the following SQL statement: SELECT employee_id, department_id FROM employees WHERE department_id= 50 ORDER BY department_id UNION SELECT employee_id, department_id FROM employees WHERE department_id= 90 UNION SELECT employee_id, department_id FROM employees WHERE department_id= 10;
What would be the outcome of the above SQL statement?

• A.The statement would not execute because the ORDER BY clause should appear only at the end of the SQL statement, that is, in the last SELECT statement.
• B.The statement would execute successfully and display all the rows in the ascending order of DEPARTMENT_ID.
• C.The statement would execute successfully but it will ignore the ORDER BY clause and display the rows in random order.
• D.The statement would not execute because the positional notation instead of the column name should be used with the ORDER BY clause.

View the Exhibit and examine DEPARTMENTS and the LOCATIONS tables.
Evaluate the following SOL statement:
SELECT location_id, city FROM locations I WHERE NOT EXISTS (SELECT location_id FROM departments WHERE location_id <> I. location_id);
This statement was written to display LOCATION_ID and CITY where there are no departments located. Which statement is true regarding the execution and output of the command?

• A.The statement would execute and would return the desired results.
• B.The statement would execute but it will return zero rows because the WHERE clause in the inner query should have the = operator instead of <>.
• C.The statement would not execute because the WHERE clause in the outer query is missing the column name for comparison with the inner query result.
• D.The statement would not execute because the = comparison operator is missing in the WHERE clause of the outer query.

View the Exhibit and examine the details of the EMPLOYEES table.
You want to generate a hierarchical report for all the employees who report to the employee whose EMPLOYEE_ID is 100.
Which SQL clauses would you require to accomplish the task? (Choose all that apply.)

• A.START WITH
• B.WHERE
• C.HAVING
• D.CONNECT BY
• E.GROUP BY

View the Exhibit and examine the structure of the LOCATIONS and DEPARTMENTS tables.
Which SET operator should be used in the blank space in the following SQL statement to display the cities that have departments located in them?
SELECT location_id, city
FROM locations
SELECT location_id, city FROM locations JOIN departments USING(location_id);

• A.UNION
• B.INTERSECT
• C.UNION ALL
• D.MINUS