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How to Study the Oracle 1Z0-071: Oracle Database SQL Exam
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NEW QUESTION 41
View the Exhibit and examine the data in the PRODUCTS table.
You must display product names from the PRODUCTS table that belong to the 'Software/other' category with minimum prices as either $2000 or $4000 and with no unit of measure.
You issue this query:
Which statement is true?
- A. It generates an error because the condition specified for the PROD_CATEGORY column is not valid.
- B. It executes successfully but returns no result.
- C. It generates an error because the condition specified for PROD_UNIT_OF_MEASURE is not valid.
- D. It executes successfully and returns the required result.
Answer: B
NEW QUESTION 42
You must create a table for a banking application.
One of the columns in the table has these requirements:
A column to store the duration of a short team loan
The data should be stored in a format supporting DATE arithmetic with DATE datatypes without using conversion functions.
The maximum loan period is 30 days.
Interest must be calculated based on the number of days for which the loan remains unpaid.
Which data type would you use?
- A. TIMESTAMP
- B. INTERVAL YEAR TO MONTH
- C. INTERVAL DAY TO SECOND
- D. NUMBER
- E. DATE
Answer: C
NEW QUESTION 43
Examine this statement which returns the name of each employee and their manager:
You want to extend the query to include managers with no employees. What must you add before join to do this?
- A. CROSS
- B. LEFT OUTER
- C. RIGHT OUTER
- D. FULL. OUTER
Answer: C
NEW QUESTION 44
View the Exhibit and examine the data in the EMPLOYEES table.
Exhibit
You want to generate a report showing the total compensation paid to each employee to date.
You issue the following query:
What is the outcome?
- A. It executes successfully but does not give the correct output.
- B. IT executes successfully and gives the correct output.
- C. It generates an error because the usage of the ROUNDfunction in the expression is not valid.
- D. It generates an error because the concatenation operator can be used to combine only two items.
- E. It generates an error because the alias is not valid.
Answer: A
Explanation:
Explanation/Reference:
NEW QUESTION 45
Examine this query:
SELECT SUBSTR (SYSDATE,1,5) 'Result' FROM DUAL
Which statement is true?
- A. It fails unless the expression is modified to TO-CHAR(SUNBSTR(SYSDATE,1,5)
- B. It fails unless the expression is modified to SUBSTR (TO_ CHAR(TRUNC(SYSDATE)),1,5)
- C. It executes successfully with an implicit data type conversion
- D. It fails unless the expression is modified to SUBSTR (TO_ CHAR(SYSDATE),1,5)
Answer: C
NEW QUESTION 46
View the Exhibit and examine the details of the PRODUCT_INFORMATION table.
Evaluate this SQL statement:
SELECT TO_CHAR (list_price, '$9,999')
From product_information;
Which two statements are true regarding the output? (Choose two.)
- A. A row whose LIST_PRICE column contains value 11235.90 would be displayed as #######.
- B. A row whose LIST_PRICE column contains value 1123.90 would be displayed as $1,123.
- C. A row whose LIST_PRICE column contains value 11235.90 would be displayed as $1,123.
- D. A row whose LIST_PRICE column contains value 1123.90 would be displayed as $1,124.
Answer: A,D
NEW QUESTION 47
Which three statements are true regarding single row subqueries?
- A. They must be placed on the left side of the comparison operator or condition.
- B. They can be used in the where clause.
- C. They must return a row to prevent errors in the SQL statement.
- D. A SQL statement may have multiple single row subquery blocks.
- E. They can be used in the having clause.
- F. They must be placed on the right side of the comparison operator or condition.
Answer: B,D,E
NEW QUESTION 48
You execute the SQL statement:
What is the outcome?
- A. It fails because the condition for the CNAMESconstraint is not valid.
- B. It It succeeds and CITYcan contain only 'SEATTLE'or null for all rows.
- C. It succeeds and an index is created for CITIZEN_ID.
- D. It fails because the NOT NULL and DEFAULToptions cannot be combined for the same column.
Answer: C
NEW QUESTION 49
A non-correlated subquery can be defined as __________. (Choose the best answer.)
- A. A set of sequential queries, all of which must return values from the same table.
- B. A set of one or more sequential queries in which generally the result of the inner query is used as the search value in the outer query.
- C. A SELECT statement that can be embedded in a clause of another SELECT statement only.
- D. A set of sequential queries, all of which must always return a single value.
Answer: B
Explanation:
Explanation/Reference:
NEW QUESTION 50
Which three are true about the MERGEstatement? (Choose three.)
- A. It can update, insert, or delete rows conditionally in multiple tables.
- B. It can use views to produce source rows.
- C. It can combine rows from multiple tables conditionally to insert into a single table.
- D. It can merge rows only from tables.
- E. It can use subqueries to produce source rows.
- F. It can update the same row of the target table multiple times.
Answer: A,B,E
Explanation:
Explanation/Reference: https://www.oracletutorial.com/oracle-basics/oracle-merge/
NEW QUESTION 51
Examine the structure of the MARKStable:
Which two statements would execute successfully? (Choose two.)
SELECT SUM(DISTINCT NVL(subject1,0)), MAX(subject1)
- A. FROM marks
WHERE subject1 > AVG(subject1);
SELECT SUM(subject1+subject2+subject3) - B. FROM marks
WHERE subject1 > subject2;
SELECT student_name subject1 - C. FROM marks
WHERE student_name IS NULL;
SELECT student_name,SUM(subject1) - D. FROM marks
WHERE student_name LIKE 'R%';
Answer: B,C
NEW QUESTION 52
View the exhibit and examine the structure of the EMPLOYEES table.
You want to display all employees and their managers having 100 as the MANAGER_ID.
You want the output in two columns: the first column would have the LAST_NAME of the managers and the second column would have LAST_NAME of the employees.
Which SQL statement would you execute?
- A. SELECT m.last_name "Manager", e.last_name "Employee"FROM employees m JOIN employees eON m.employee_id = e.manager_idWHERE e.manager_id = 100;
- B. SELECT m.last_name "Manager", e.last_name "Employee"FROM employees m JOIN employees eWHERE m.employee_id = e.manager_id and AND e.manager_id = 100
- C. SELECT m.last_name "Manager", e.last_name "Employee"FROM employees m JOIN employees eON e.employee_id = m.manager_idWHERE m.manager_id = 100;
- D. SELECT m.last_name "Manager", e.last_name "Employee"FROM employees m JOIN employees eON m.employee_id = e.manager_idWHERE m.manager_id = 100;
Answer: A
NEW QUESTION 53
Examine the description of the EMPLOYEES table:
The session time zone is the same as the database server
Which two statements will list only the employees who have been working with the company for more than five years?
- A. SELECT employee_ name FROM employees WHERE (SYSNAYW - hire_ data / 12> 3
- B. SELECT employee_ name FROM employees WHERE (SYSTIMESTAMP - hire_ data) / 365>
- C. SELECT employee_ name FROM employees WHERE (SYSNAYW - hire_ data / 12> 3
- D. SELECT employee_ name FROM employees WHERE (SYSDATE - hire_ data) / 365>5
- E. SELECT employee_ name FROM employees WHERE (CUARENT_ DATE - hire_ data / 365>5
- F. SELECT employee_ name FROM employees WHERE (CUNACV_ DATE - hire_ data / 12> 3
Answer: D,E
NEW QUESTION 54
The EMPLOYEES table contains columns EMP_IDof data type NUMBERand HIRE_DATEof data type DATE.
You want to display the date of the first Monday after the completion of six months since hiring.
The NLS_TERRITORYparameter is set to AMERICAin the session and, therefore, Sunday is the first day of the week.
Which query can be used?
- A. SELECT emp_id, ADD_MONTHS(hire_date, 6), NEXT_DAY('MONDAY') FROM employees;
- B. SELECT emp_id, NEXT_DAY(ADD_MONTHS(hire_date, 6), 1) FROM employees;
- C. SELECT emp_id, NEXT_DAY (MONTHS_BETWEEN (hire_date, SYSDATE), 6) FROM
- D. employees;
SELECT emp_id, NEXT_DAY(ADD_MONTHS(hire_date, 6), 'MONDAY') FROM employees;
Answer: D
Explanation:
Explanation/Reference: http://www.dba-oracle.com/t_add_months.htm
NEW QUESTION 55
which three statements are true about indexes and their administration in an Oracle database?
- A. IF a query filters on an indexed column then it will always be used during execution of query
- B. The same table column can be part of a unique and non-unique index
- C. AN INVISIBLE INDEX is not maintained when DML is performed on its underlying table.
- D. A DESCENDING INDEX IS A type of function-based index
- E. A DROP INDEX statement always prevents updates to the table during the drop operation
- F. AN INDEX CAN BE CREATED AS part of a CREATE TABLE statement
Answer: D,E,F
NEW QUESTION 56
Which two statements are true regarding savepoints? (Choose two.)
- A. Savepoints may be used to ROLLBACK.
- B. Savepoints are effective only for COMMIT.
- C. Savepoints can be used for both DML and DDL statements.
- D. Savepoints are effective for both COMMITand ROLLBACK.
- E. Savepoints can be used for only DML statements.
Answer: A,E
Explanation:
Explanation/Reference:
Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14200/
statements_10001.htm#SQLRF01701
NEW QUESTION 57
Examine the structure and data in the PRICE_LIST table:
You plan to give a discount of 25% on the product price and need to display the discount amount in the same format as the PROD_PRICE.
Which SQL statement would give the required result?
- A. SELECT TO_CHAR (prod_price* .25, '$99,999.99')FROM PRICE_LIST
- B. SELECT TO_NUMBER (TO_NUMBER(prod_price, '$99,999.99') * . 25, '$99,999.00')FROM PRICE_LIST
- C. SELECT TO_CHAR (TO_NUMBER(prod_price, '$99,999.99') * . 25, '$99,999.00')FROM PRICE_LIST
- D. SELECT TO_CHAR (TO_NUMBER(prod_price) * .25, '$99,999.00')FROM PRICE_LIST
Answer: C
NEW QUESTION 58
Examine the structure proposed for the TRANSACTIONStable:
Which two statements are true regarding the creation and storage of data in the above table structure?
(Choose two.)
- A. The TRANS_DATEcolumn would be able to store day, month, century, year, hour, minutes, seconds, and fractions of seconds.
- B. The CUST_CREDIT_LIMITcolumn would be able to store decimal values.
- C. The TRANS_VALIDITYcolumn would give an error.
- D. The TRANS_VALIDITYcolumn would have a maximum size of one character.
- E. The CUST_STATUScolumn would store exactly one character.
- F. The CUST_STATUScolumn would give an error.
Answer: C,E
NEW QUESTION 59
Examine the structure of the DEPARTMENTS table.
You execute the following command:
Which two statements are true?
- A. Indexes created on the COUNTRYcolumn exist until the DROP UNUSED COLUMNScommand is executed.
- B. Views created in the DEPARTMENTStable that include the COUNTRYcolumn are automatically modified and remain valid.
- C. Unique key constraints defined on the COUNTRYcolumn are removed.
- D. Synonyms existing of the DEPARTMENTStable would have to be re-created.
- E. A new column, COUNTRY, can be added to the DEPARTMENTStable after executing the command.
Answer: C,E
NEW QUESTION 60
In the PROMOTIONS table, the PROMO_BEGTN_DATE column is of data type DATE and the default date format is DD-MON-RR.
Which two statements are true about expressions using PROMO_BEGIN_DATE contained in a query?
- A. PROMO_BEGIN_DATE-SYSDATE will return an error.
- B. TO_NUMBER(PROMO_BEGIN_DATE)-5 will return number
- C. TO_DATE(PROMO_BEGIN_DATE * 5) will return a date
- D. PROMO_BEGIN_DATE-SYSDATE will return a number.
- E. PROMO_BEGIN_DATE-5 will return a date.
Answer: D,E
NEW QUESTION 61
View the Exhibit and examine the structure of the CUSTOMERS table.
Using the CUSTOMERS table, you must generate a report that displays a credit limit increase of 15% for all customers.
Customers with no credit limit should have "Not Available" displayed.
Which SQL statement would produce the required result?
- A. SELECT TO_CHAR(NVL(cust_credit_limit*.15,'Not Available')) "NEW CREDIT"FROM customers;
- B. SELECT NVL(cust_credit_limit,'Not Available')*.15 "NEW CREDIT"FROM customers;
- C. SELECT NVL(TO_CHAR(cust_credit_limit*.15),'Not Available') "NEW CREDIT"FROM customers;
- D. SELECT NVL(cust_credit_limit*.15,'Not Available') "NEW CREDIT"FROM customers;
Answer: C
NEW QUESTION 62
View the Exhibit and examine the data in the PRODUCT_INFORMATIONtable.
Which two tasks would require subqueries? (Choose two.)
- A. displaying the minimum list price for each product status
- B. displaying the number of products whose list prices are more than the average list price
- C. displaying the total number of products supplied by supplier 102071 and having product status OBSOLETE
- D. displaying all the products whose minimum list prices are more than average list price of products having the status orderable
- E. displaying all supplier IDs whose average list price is more than 500
Answer: B,D
NEW QUESTION 63
View the Exhibit and examine the data in the PRODUCT_INFORMATIONtable.
Which two tasks would require subqueries? (Choose two.)
- A. displaying the minimum list price for each product status
- B. displaying the number of products whose list prices are more than the average list price
- C. displaying the total number of products supplied by supplier 102071 and having product status OBSOLETE
- D. displaying all the products whose minimum list prices are more than average list price of products having the status orderable
- E. displaying all supplier IDs whose average list price is more than 500
Answer: B,D
NEW QUESTION 64
Which two statements are true regarding constraints? (Choose two.)
- A. All the constraints can be defined at the column level as well as the table level
- B. A constraint is enforced only for the INSERT operation on a table.
- C. A constraint can be disabled even if the constraint column contains data.
- D. A column with the UNIQUE constraint can contain NULL.
- E. A foreign key cannot contain NULL values.
Answer: C,D
NEW QUESTION 65
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