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Q81. View the Exhibit and examine the description of the ORDERS table.
Your manager asked you to get the SALES_REP_ID and the total numbers of orders placed by each of the sales representatives. Which statement would provide the desired result?
A. SELECT sales_rep_id, COUNT(order_id) total_orders FROM orders
GROUP BY sales_rep_id;
B. SELECT sales_rep_id, COUNT(order_id)total_orders FROM orders GROUP BY sales_rep_id, total_orders;
C. SELECT sales_rep_id, COUNT(order_id)total_orders FROM orders;
D. SELECT sales_rep_id, COUNT(order_id)total_orders FROM orders WHERE sales_rep_id IS NOT NULL;
Answer: A
Q82. View the Exhibit and examine the description of the EMPLOYEES and DEPARTMENTS tables.
You want to display the LAST_NAME for the employees, LAST_NAME for the manager of the employees, and the DEPARTMENT_NAME for the employees having 100 as MANAGER_ID. The following SQL statement was written:
SELECT m.last_name "Manager", e.last_name "Employee", department_name "Department" FROM employees m JOIN employees e
ON (m.employee_id = e.manager_id)
WHERE e.manager_id=100
JOIN departments d
ON (e.department_id = d.department_id);
Which statement is true regarding the output of this SQL statement?
A. The statementwouldprovide the desired results.
B. Thestatement wouldnotexecute because the ON clause iswritten twice.
C. Thestatement wouldnot execute because the WHERE clause is wrongly placed.
D. The statement wouldnot execute because the self join usestheON clauseinsteadof the USING clause.
Answer: C
Q83. Evaluate the following statement:
INSERT ALL
WHEN order_total < 10000 THEN
INTO small_orders
WHEN order_total > 10000 AND order_total < 20000 THEN
INTO medium_orders
WHEN order_total > 2000000 THEN
INTO large_orders
SELECT order_id, order_total, customer_id
FROM orders;
Which statement is true regarding the evaluation of rows returned by the subquery in the INSERT statement?
A. They areevaluatedby allthe three WHENclauses regardlessofthe resultsof the evaluation ofany other WHEN clause.
B. They are evaluated by thefirst WHENclause. If the condition is true, then the row would be evaluated by the subsequent WHEN clauses.
C. They are evaluated by the first WHEN clause. If the condition isfalse,thenthe row wouldbeevaluated by the subsequentWHENclauses.
D. TheINSERT statement would give an error becausetheELSE clause is notpresent forsupport in case none of theWHENclauses are true.
Answer: A
Q84. View the Exhibit and examine the structure of the EMPLOYEES and DEPARTMENTS tables.
Which SET operator would you use in the blank space in the following SQL statement to list the departments where all the employees have managers?
SELECT department_id FROM departments
SELECT department_id FROM employees WHERE manager_id IS NULL;
A. UNION
B. MINUS
C. INTERSECT
D. UNION ALL
Answer: B
Q85. View the Exhibit and examine the structure of the EMPLOYEES table.
You want to know the FIRST_NAME and SALARY for all employees who have the same manager as that of the employee with the first name 'Neena' and have salary equal to or greater than that of'Neena'.
Which SQL statement would give you the desired result?
A. SELECTfirst_name, salary FROM employees WHERE (manager_id, salary) >= ALL (SELECT manager_id, salary FROM employees WHERE first_name = 'Neena' AND first_name <> 'Neena'
B. SELECT first_name, salary FROM employees WHERE (manager_id, salary) >= (SELECT manager_id, salary FROM employees WHERE first_name = 'Neena') AND first_name <> 'Neena'
C. SELECT first_name, salary FROM employees WHERE (manager_id, salary) >= ANY (SELECT manager_id, salary FROM employees WHERE first_name = 'Neena' AND first_name <> 'Neena'
D. SELECT first_name, salaryFROM employees WHERE (manager_id = (SELECT manager_id FROM employees WHERE first_name = 'Neena') AND salary >= (SELECT salary FROM employees WHERE first_name = 'Neena')) AND first name <> 'Neena'
Answer: D
Q86. OE and SCOTT are the users in the database. The ORDERS table is owned by OE. Evaluate the statements issued by the DBA in the following sequence:
CREATE ROLE r1;
GRANT SELECT, INSERT ON oe. orders TO r1;
GRANT r1 TO scott;
GRANT SELECT ON oe. orders TO scott;
REVOKE SELECT ON oe.orders FROM scott;
What would be the outcome after executing the statements?
A. SCOTT would be able to query the OE.ORDERS table.
B. SCOTT would not be able to query the OE.ORDERS table.
C. The REVOKE statement would remove the SELECT privilege from SCOTT as well as from the role R1.
D. The REVOKE statement would give an error because the SELECT privilege has been granted to the role R1
Answer: A
Q87. View the Exhibit and examine the structure of ORDERS and ORDER_ITEMS tables.
ORDER__ID is the primary key in the ORDERS table. It is also the foreign key in the ORDER_ITEMS table wherein it is created with the ON DELETE CASCADE option.
Which DELETE statement would execute successfully?
A. DELETEorder_id
FROMorders
WHEREorder_total< 1000;
B. DELETEorders
WHERE order_total < 1000;
C. DELETE
FROM orders
WHERE (SELECTorder_id
FROM order_items);
D. DELETE orders o, order_itemsi
WHEREo.order id = i.order id;
Answer: B
Q88. Which two statements best describe the benefits of using the WITH clause? (Choose two.)
A. It enables users to store the results of a query permanently.
B. It enables users to store the query block permanently in the memory and use it to create complex queries.
C. It enables users to reuse the same query block in a SELECT statement, if it occurs more than once in a complex query.
D. It can improve the performance of a large query by storing the result of a query block having the WITH clause in the user's temporary tablespace.
Answer: CD
Q89. Given below is a list of functions and the tasks performed by using these functions, in random order.
Function Usage
1) LPAD a) Used to truncate a column, expression, or value to n decimal places 2) TRUNC b) Used to remove heading or trailing or both characters from the character string 3) DECODE c) Pads the character value right-justified to a total width of n character positions 4) TRIM d) Used to return the numeric value for position of a named character from the character string 5) INSTR e) Used to translate an expression after comparing it with each search value
Which option correctly matches the function names with their usage?
A. 1-c,2-b,3-e,4-a,5-d
B. 1-e,2-b,3-c,4-a,5-d
C. 1-e,2-a,3-c,4-d,5-b
D. 1-c,2-a,3-e,4-b,5-d
Answer: D
Q90. Evaluate the CREATE TABLE statement:
CREATE TABLE products
(product_id NUMBER(6) CONSTRAINT prod_id_pk PRIMARY KEY,
product_name VARCHAR2(15));
Which statement is true regarding the PROD_ID_PK constraint?
A. Itwould becreated only if a unique index is manually created first.
B. Itwould becreated andwould use an automatically created unique index.
C. It would be createdandwould use an automaticallycreatednonunique index.
D. Itwouldbecreated and remainsinadisabledstatebecauseno indexis specified in the command.
Answer: B
