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NEW QUESTION # 109
View the Exhibit and examine the description of the EMPLOYEES table.
You want to calculate the total remuneration for each employee. Total remuneration is the sum of the annual salary and the percentage commission earned for a year. Only a few employees earn commission.
Which SQL statement would you execute to get the desired output?
- A. SELECT first_name, salary, salary*12+(salary*NVL2 (commission_pct,
salary,salary+commission_pct))"Total"FROM EMPLOYEES; - B. SELECT first_name, salary (salary + NVL (commission_pct, 0)*salary)*12 "Total"FROM EMPLOYEES;
- C. SELECT first_name, salary, salary*12 + NVL(salary,0)*commission_pct, "Total"FROM EMPLOYEES;
- D. SELECT first_name, salary, salary*12+salary*commission_pct "Total"FROM EMPLOYEES;
Answer: A
NEW QUESTION # 110
View the Exhibit and examine the structure of the ORDER_ITEMS table.
You must select the ORDER_ID of the order that has the highest total value among all the orders in the ORDER_ITEMS table.
Which query would produce the desired result?
- A. SELECT order_id
FROM order_items
WHERE(unit_price*quantity) = (SELECT MAX (SUM(unit_price*quantity)
FROM order_items) GROUP BY order_id); - B. SELECT order_id
FROM order_items
WHERE (unit_price*quantity) = (SELECT MAX(unit_price*quantity)
FROM order_items
GROUP BY order_id) - C. SELECT order_id
FROM order_items
WHERE(unit_price*quantity) = MAX(unit_price*quantity)
GROUP BY order_id); - D. SELECT order_id
FROM order_items
GROUP BY order_id
HAVING SUM(unit_price*quantity) = (SELECT MAX (SUM(unit_price*quantity)) FROM order_items GROUP BY order_id);
Answer: D
NEW QUESTION # 111
The first DROP operation is performed on PRODUCTS table using the following command:
DROP TABLE products PURGE;
Then you performed the FLASHBACK operation by using the following command:
FLASHBACK TABLE products TO BEFORE DROP;
Which statement describes the outcome of the FLASHBACK command?
- A. It is not possible to recover the table structure, data, or the related indexes.
- B. It recovers the table structure, data, and the indexes.
- C. It recovers only the table structure.
- D. It recovers the table structure and data but not the related indexes.
Answer: A
Explanation:
Explanation
References:
https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_9003.htm
NEW QUESTION # 112
Examine these SQL statements that are executed in the given order:
CREATE TABLE emp
(emp_no NUMBER (2) CONSTRAINT emp_emp_no_pk PRIMARY KEY,
ename VARCHAR 2 (15),
salary NUMBER (8, 2),
mgr_no NUMBER(2) CONSTRAINT emp_mgr_fk REFERENCES emp (emp_no));
ALTER TABLE emp
DISABLE CONSTRAINT emp_emp_no_pk CASCADE;
ALTER TABLE emp
ENABLE CONSTRAINT emp_emp_no_pk;
What will be the status of the foreign key EMP_MGR_FK?
- A. It will be enabled and deferred.
- B. It will remain disabled and can be re-enabled manually.
- C. It will be enabled and immediate.
- D. It will remain disabled and can be enabled only by dropping the foreign key constraint and re-creating it.
Answer: B
NEW QUESTION # 113
SCOTTis a user in the database.
Evaluate the commands issued by the DBA:
Which statement is true regarding the execution of the above commands?
- A. Statement 1 would not execute because the WITH GRANToption is missing.
- B. Statement 2 would not execute because system privileges and object privileges cannot be granted together in a single GRANTcommand.
- C. Statement 3 would not execute because role and system privileges cannot be granted together in a single GRANTstatement.
- D. Statement 1 would not execute because the IDENTIFIED BY <password>clause is missing.
Answer: B
NEW QUESTION # 114
Which three statements are true about performing Data Manipulation Language (DML) operations on a view in an Oracle Database? (Choose three.)
- A. Views cannot be used to add or modify rows in an underlying table if the defining query of the view contains the DISTINCTkeyword.
- B. Views cannot be used to add or modify rows in an underlying table if the defining query of the view contains aggregating functions.
- C. The WITH CHECKclause has no effect when deleting rows from the underlying table through the view.
- D. Views cannot be used to add rows to an underlying table if the table has columns with NOT NULL constraints lacking default values which are not referenced in the defining query of the view.
- E. Insert statements can always be done on a table through a view.
- F. Views cannot be used to query rows from an underlying table if the table has a PRIMARY KEYand the PRIMARY KEYcolumns are not referenced in the defining query of the view.
Answer: B,D,F
NEW QUESTION # 115
Which two are true about self joins?
- A. They require the exists operator In the join condition.
- B. They require table aliases,
- C. They are always condition.
- D. They require the not exists operator In the join condition.
- E. They have no Join condition.
- F. They can use INNER join and LEFT .join.
Answer: B,F
NEW QUESTION # 116
View the Exhibits and examine the structure of the costs and promotions tables.
You want to display prod_ids whose promotion cost is less than the highest cost PR0D_ID in a promotion time interval.
Examine this SQL statement:
What will be the result?
- A. It gives an error because the ROUP BY clause is not valid.
- B. It executes successfully but does not give the required result.
- C. It gives an error because the all keyword is not valid.
- D. It executes successfully and gives the required result.
Answer: D
NEW QUESTION # 117
Which statement is true about SQL query processing in an Oracle database instance?
(Choose the best answer.)
- A. During row source generation, rows that satisfy the query are retrieved from the database and stored in memory.
- B. During parsing, a SQL statement containing literals in the WHERE clause that has been executed by any session and which is cached in memory, is always reused for the current execution.
- C. During optimization, execution plans are formulated based on the statistics gathered by the database instance, and the lowest cost plan is selected for execution.
- D. During executing, the oracle server may read data from storage if the required data is not already in memory.
Answer: D
NEW QUESTION # 118
Which two statements are true about INTERVAL data types?
- A. INTERVAL DAY TO SECOND columns support fractions of seconds.
- B. The YEAR field in an INTERVAL YEAR TO MONTH column must be a positive value.
- C. INTERVAL YEAR TO MONTH columns support yearly intervals.
- D. INTERVAL YEAR TO MONTH columns only support monthly intervals within a range of years.
- E. INTERVAL YEAR TO MONTH columns only support monthly intervals within a single year.
- F. The value in an INTERVAL DAY TO SECOND column can be copied into an INTERVAL YEAR TO MONTH column.
Answer: A,D
NEW QUESTION # 119
View the exhibit and examine the structure of the PROMOTIONS table.
You have to generate a report that displays the promo name and start date for all promos that started after the last promo in the 'INTERNET' category.
Which query would give you the required output?
- A. SELECT promo_name, promo_begin_date FROM promotions
WHERE promo_begin_date > ALL (SELECT promo_begin_date
FROM promotions
WHERE promo_category = 'INTERNET'); - B. SELECT promo_name, promo_begin_date FROM promotions
WHERE promo_begin_date> ALL (SELECT MAX (promo_begin_date)
FROM promotions) AND
promo_category= 'INTERNET'; - C. SELECT promo_name, promo_begin_date FROM promotions
WHERE promo_begin_date> ANY (SELECT promo_begin_date
FROM promotions
WHERE promo_category= 'INTERNET'); - D. SELECT promo_name, promo_begin_date FROM promotions
WHERE promo_begin_date IN (SELECT promo_begin_date
FROM promotions
WHERE promo_category= 'INTERNET');
Answer: A
NEW QUESTION # 120
Examine this list of requirements for a sequence:
1. Name:EMP_SEQ
2. First value returned:1
3. Duplicates are never permitted.
4. Provide values to be inserted into the EMPLOYEES.EMPLOYEE_ID COLUMN.
5. Reduce the chances of gaps in the values.
Which two statements will satisfy these requirements?
- A. CREATE SEQUENCE emp_seq START WITH 1 INCRENENT BY 1 NOCACHE;
- B. CREATE SEQUENCE emp_seq;
- C. CREATE SEQUENCE emp_seq START WITH 1 INCREMENT BY 1 CACHE;
- D. CREATE SEQUENCE emp_seq NOCACHE;
- E. CREATE SEQUENCE emp_seq START WITH 1 CACHE;
- F. CREATE SEQUENCE emp_seq START WITH 1 INCREMENT BY 1 CYCLE;
Answer: A,C
Explanation:
* A: 'CREATE SEQUENCE emp_seq START WITH 1 INCREMENT BY 1 NOCACHE;' is correct for ensuring unique values without gaps as much as possible by not caching sequence numbers, which might otherwise be lost in a system crash.
* B: CYCLE allows the sequence to restart when its max/min value is reached, which does not help with requirement 3 (duplicates are never permitted). Therefore, B is incorrect.
* C: This lacks the necessary attributes like START WITH and INCREMENT BY which are crucial to defining a sequence. Thus, statement C is incorrect.
* D: 'CREATE SEQUENCE emp_seq START WITH 1 CACHE;' might introduce gaps due to the caching of sequence numbers. This statement is somewhat contrary to requirement 5.
* E: 'CREATE SEQUENCE emp_seq START WITH 1 INCREMENT BY 1 CACHE;' will provide continuous unique values, but may include gaps when the cache is lost due to a restart, yet it is more efficient and still generally aligns with the requirements. Hence, statement E is considered correct.
* F: This lacks detail and is too ambiguous, lacking the necessary parameters. Therefore, F is incorrect.
NEW QUESTION # 121
Examine the description of the EMPLOYEES table:
Examine this query:
Which line produces an error?
- A. Line 7
- B. Line 3
- C. Line 8
- D. Line 5
Answer: B
NEW QUESTION # 122
View the exhibit and examine the description of the DEPARTMENTSand EMPLOYEEStables.
You wrote this SQL statement to retrieve EMPLOYEE_ID, FIRST_NAME, and DEPARTMENT NAME, for all employees:
SELECT employee_id, first_name, department_name
FROM employees
NATURAL JOIN departments;
The desired output is not obtained after executing the above SQL statement. What could be the reason for this?
- A. The EMPLOYEESand DEPARTMENTStables have more than one column with the same column name and data type.
- B. The table prefix is missing for the column names in the SELECTclause.
- C. The NATURAL JOINclause is missing the USINGclause.
- D. The DEPARTMENTStable is not used before the EMPLOYEEStable in the FROMclause.
Answer: A
Explanation:
Natural join needs only one column to be the same in each table. The EMPLOYEESand DEPARTMENTStables have two columns that are the same (Department_ID and Manager_ID)
NEW QUESTION # 123
You need to calculate the number of days from 1st January 2019 until today.
Dates are stored in the default format of DD-MON-RR.
Which two queries give the required output?
- A. SELECT ROUND (SYSDATE- '01-JAN-2019') FROM DUAL;
- B. SELECT ROUND (SYSDATE-TO_DATE ('01/JANUARY/2019')) FROM DUAL;
- C. SELECT TO_CHAR (SYSDATE, 'DD-MON-YYYY')-'01-JAN-2019' FROM DUAL;
- D. SELECT SYSDATE-TO_DATE ('01-JANUARY-2019') FROM DUAL;
- E. SELECT TO_DATE (SYSDATE, 'DD/MONTH/YYYY')-'01/JANUARY/2019' FROM DUAL;
Answer: B,D
NEW QUESTION # 124
You execute the SQL statement:
SQL> CREATE TABLE citizens
(citizen_id CHAR (10) PRIMARY KEY,
last_name VARCHAR2 (50) NOT NULL,
first_name VARCHAR2 (50),
address VARCHAR2 (100),
city VARCHAR2 (30) DEFAULT 'SEATTLE' NOT NULL,
CONSTRAINT cnames CHECK (first_name<>last_name) );
What is the outcome?
- A. It succeeds and an index is crated for CITIZEN_ID.
- B. It fails because the NOT NULL and DEFAULT options cannot be combined for the same column.
- C. It fails because the condition for the CANAMES constraint is not valid.
- D. It succeeds and CITY can contain only 'SEATTLE' or null for all rows.
Answer: B
NEW QUESTION # 125
View the Exhibit and examine the structure of the PRODUCT_INFORMATION table.
You want to see the product names and the date of expiration of warranty for all the products, if the product is purchased today. The products that have no warranty should be displayed at the top and the products with maximum warranty period should be displayed at the bottom.
Which SQL statement would you execute to fulfill this requirement?
- A. SELECT product_name, SYSDATE+warranty_period AS "Warranty expire date"FROM product_informationWHERE warranty_period > SYSDATE
- B. SELECT product_name, SYSDATE+warranty_period AS "Warranty expire date"FROM product_informationORDER BY SYSDATE+warranty_period
- C. SELECT product_name, SYSDATE+warranty_period AS "Warranty expire date"FROM product_informationORDER BY SYSDATE-warranty_period
- D. SELECT product_name, SYSDATE+warranty_period AS "Warranty expire date"FROM product_informationORDER BY SYSDATE
Answer: B
NEW QUESTION # 126
Examine the description of the EMPLOYEEStable:
Which two queries return rows for employees whose manager works in a different department? (Choose two.)
- A.
- B.
- C.
- D.
- E.
Answer: A,C
NEW QUESTION # 127
Evaluate the following query
What is the correct output of the above query?
- A. +00-300, +00-650, +00 11:12:10.123457
- B. +25-00, +00-650, +00 11:12:10.123457
- C. +00-300, +54-02, +00 11:12:10.123457
- D. +25-00, +54-02, +00 11:12:10.123457
Answer: D
NEW QUESTION # 128
Examine the structure of the MARKS table:
Which two statements would execute successfully? (Choose two.)
- A. SELECT SUM(subject1+subject2+subject3)FROM marksWHERE student_name IS NULL;
- B. SELECT SUM(DISTINCT NVL(subject1,0)), MAX(subject1)FROM marksWHERE
subject1 > subject2; - C. SELECT student_name subject1FROM marksWHERE subject1 > AVG(subject1);
- D. SELECT student_name,SUM(subject1)FROM marksWHERE student_name LIKE 'R%';
Answer: A,B
NEW QUESTION # 129
The SQL statements executed in a user session are as follows:
Which two statements describe the consequences of issuing the ROLLBACK TO SAVE POINT a command in the session? (Choose two.)
- A. Only the DELETE statements are rolled back.
- B. No SQL statements are rolled back.
- C. The rollback generates an error.
- D. Both the DELETE statements and the UPDATE statement are rolled back.
- E. Only the second DELETE statement is rolled back.
Answer: B,C
NEW QUESTION # 130
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