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Prerequisites
There are no official requirements for passing the Oracle 1Z0-071 exam. However, it is recommended that the students have a good grasp of SQL syntax rules. They also need to be able to use general SQL functions, identify the result of fundamental DDL operations, and know how to implement SQL statements and functions.
Introduction to Oracle 1Z0-071: Oracle Database SQL Exam
The Oracle Database SQL Management exam evaluates the knowledge and skills of RAC and Grid Infrastructure Database Administrators and System Administrators with at least one year of experience. Candidates should be able to mount, maintain, monitor, tune and restore RAC databases, clusters and Oracle Automated Storage Management (ASM). You should have a clear knowledge of ASM, Clusterware and Oracle RAC database architectures. They should also be able to track and tune the upload, configuration, backup, and retrieval of these components.
For Oracle Data Base Software produced by Oracle Corporation, the Oracle Real Application Cluster (RAC) in data base computing offers clustering software and high availability in Oracle database environments. Oracle Corporate provides RAC in the Business version, provided that the nodes are clustered using Oracle Clusterware. Oracle RAC requires many computers to operate Oracle RDBMS applications concurrently with clustering while accessing a single database.
Oracle Grid Infrastructure is the software Oracle that maintains a storage framework that involves file system control, volume management and restart process automation. You need to set up Oracle grid infrastructure before deploying Oracle Database if you want to use Oracle restart or Oracle Automated Storage Management (ASM) services.
NEW QUESTION 74
Evaluate the following SQL statement:
SQL> select cust_id, cust_last_name "Last name"
FROM customers
WHERE country_id = 10
UNION
SELECT cust_id CUST_NO, cust_last_name
FROM customers
WHERE country_id = 30
Identify three ORDERBYclauses either one of which can complete the query.
- A. ORDER BY CUST_NO
- B. ORDER BY 2, cust_id
- C. ORDER BY "CUST_NO"
- D. ORDER BY 2, 1
- E. ORDER BY "Last name"
Answer: B,D,E
Explanation:
Explanation/Reference:
Explanation:
Using the ORDER BY Clause in Set Operations
-The ORDER BY clause can appear only once at the end of the compound query.
-Component queries cannot have individual ORDER BY clauses.
-The ORDER BY clause recognizes only the columns of the first SELECT query.
-By default, the first column of the first SELECT query is used to sort the output in an ascending order.
NEW QUESTION 75
Which three tasks can be performed by DDL statements?
- A. modifying a table to prevent data that violate certain conditions from being entered in a column
- B. preventing data retrieval from a table outside of office hours
- C. providing an alternative name for a table
- D. creating multiple savepoints to enable partial rollback of a transaction
- E. preventing any data modification to a table
Answer: A,C,E
NEW QUESTION 76
Examine the description of the EMPLOYEES table:
Which statement increases each employee's SALARY by the minimum SALARY for their DEPARTM
ENT_ID?
- A. UPDATE employees e1
SET salary =(SELECT e2. salary + MIN(e2.salary)
FROM employees e2
WHERE e1.department_ id = e2. department_id GROUP BY e2. department_id) ; - B. UPDATE employees e1
SET salary=
(SELECT e1.salary + MIN(e2.salary)
FROM employees e2
WHERE e1. department_ id = e2.department_id); - C. UPDATE employees e1
SET salary = salary +
(SELECT MIN(e1. salary)
FROM employees e2
WHERE e1.department_id = e2 .department_id); - D. UPDATE employees e1
SET salary = salary+(SELECT MIN (salary)
FROM employees e2) ;
Answer: B
NEW QUESTION 77
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 e
ON m.employee_id = e.manager_id
WHERE e.managerjd=100; - B. SELECT m.last_name "Manager", e.last_name "Employee"
FROM employees m JOIN employees e
ON m.employee_id = e.manager_id
WHERE m.manager_id=100; - C. SELECT m.last_name "Manager", e.last_name "Employee"
FROM employees m JOIN employees e
ON e.employee_id = m.manager_id
WHERE m.manager_id=100; - D. SELECT m.last_name "Manager", e.last_name "Employee"
FROM employees m JOIN employees e
WHERE m.employee_id = e.manager_id AND e.managerjd=100;
Answer: A
NEW QUESTION 78
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_idFROM order_itemsWHERE(unit_price*quantity) = (SELECT
MAX(unit_price*quantity)FROM order_items)GROUP BY order_id; - B. SELECT order_idFROM order_itemsGROUP BY order_idHAVING SUM(unit_price*quantity) = (SELECT MAX(SUM(unit_price*quantity))FROM order_items GROUP BY order_id);
- C. SELECT order_idFROM order_itemsWHERE (unit_price*quantity) = (SELECT MAX(unit_price*quantity)FROM order_itemsGROUP BY order_id)
- D. SELECT order_idFROM order_itemsWHERE(unit_price*quantity) =
MAX(unit_price*quantity)GROUP BY order_id;
Answer: B
NEW QUESTION 79
Evaluate the following CREATE TABLE command:
Which statement is true regarding the above SQL statement?
- A. It would execute successfully and two indexes ORD_ITM_IDX and ORD_ITM_ID PK would be created.
- B. It would give an error because the USING INDEX is not permitted in the CRETAE TABLE command.
- C. It would give an error because the USING INDEX clause cannot be used on a composite primary.
- D. It would execute successfully and only ORD_ITM_IDX index would be created.
Answer: D
NEW QUESTION 80
Which two statements are true about date/time functions in a session where NLS_DATE_FORMAT is set to DD-MON-YYYY HH24:MI:SS?
- A. CURRENT_TIMESTAMP returns the same date as CURRENT_DATE.
- B. CURRENT_TIMESTAMP returns the same date and time as SYSDATE with additional details of fractional seconds.
- C. SYSDATE can be queried only from the DUAL table.
- D. SYSDATE can be used in expressions only if the default date format is DD-MON-RR.
- E. CURRENT_DATE returns the current date and time as per the session time zone.
- F. SYSDATE and CURRENT_DATE return the current date and time set for the operating system of the database server.
Answer: C,E
NEW QUESTION 81
Which statement is true about an inner join specified in a query's WHERE clause?
- A. It requires column names to be the same in all tables being joined.
- B. It only applies for equijoin conditions.
- C. It must have primary-key and foreign-key constraints defined on the join columns.
- D. It applies for equijoin and nonequijoin conditions.
Answer: D
NEW QUESTION 82
Examine the description of the TRANSACTIONStable:
Which two SQL statements execute successfully? (Choose two.)
SELECT customer_id AS "CUSTOMER-ID", transaction_date AS DATE, amount + 100
- A. "DUES" FROM transactions;
SELECT customer_id AS CUSTOMER-ID, transaction_date AS TRANS_DATE, amount + - B. transactions;
SELECT customer_id AS "CUSTOMER-ID", transaction_date AS "DATE", amount + 100 - C. 'DUES' FROM transactions;
- D. DUES FROM transactions;
SELECT customer_id AS 'CUSTOMER-ID', transaction_date AS DATE, amount + 100 - E. 100 "DUES AMOUNT" FROM transactions;
SELECT customer_id CUSTID, transaction_date TRANS_DATE, amount +100 DUES FROM
Answer: B,D
NEW QUESTION 83
Which statement is true about transactions?
- A. A combination of DDL and DML statements executed in a sequence ending with a COMMIT forms a single transaction.
- B. A set of DDL statements executed in a sequence ending with a COMMIT forms a single transaction.
- C. Each Data Definition Language (DDL) statement executed forms a single transaction.
- D. A set of Data Manipulation Language (DML) statements executed in a sequence ending with a SAVEPOINT forms a single transaction.
Answer: C
Explanation:
References:
https://docs.oracle.com/database/121/CNCPT/transact.htm#CNCPT038
NEW QUESTION 84
View the Exhibit and examine the structure of CUSTOMERS table.
Using the CUSTOMERS table, you need to generate a report that shows an increase in the credit limit by 15% for all customers. Customers whose credit limit has not been entered should have the message "Not Available" displayed.
Which SQL statement would produce the required result?
- A. SELECT NVL(cust_credit_limit), 'Not Available') "NEW CREDIT"FROM customers;
- B. SELECT NVL(cust_credit_limit * .15), 'Not Available') "NEW CREDIT"FROM customers;
- C. SELECT NVL (TO CHAR(cust_credit_limit * .15), 'Not Available') "NEW CREDIT"FROM customers;
- D. SELECT TO_CHAR (NVL(cust_credit_limit * .15), 'Not Available') "NEW CREDIT"FROM customers;
Answer: C
NEW QUESTION 85
You execute these commands:
CREATE TABLE customers (customer_id INTEGER, customer_name VARCHAR2 (20) ) TNSERT INTO customers VALUES (1, 'Customer 1 ' ) ; SAVEPOTNT post_insert; INSERT INTO customers VALUES (2, 'Customer 2');
<TODO>
SELECT COUNT(*) FROM customers;
Which two, used independently, can replace <todo> so the query returns 1?
- A. ROLLBACK TO SAVEPOINT post_insert;
- B. COMMIT TO SAVEPOINT post_insert;
- C. ROLLBACK,"
- D. commit;
- E. ROLLBACK TO post_insert;
Answer: A,E
NEW QUESTION 86
Examine the structure of the PROMOTIONS table: (Choose the best answer.)
Management requires a report of unique promotion costs in each promotion category.
Which query would satisfy this requirement?
- A. SELECT DISTINCT promo_cost, DISTINCT promo_category FROM promotions;
- B. SELECT DISTINCT promo_category, promo_cost FROM promotions ORDER BY 1
- C. SELECT promo_category, DISTINCT promo_cost FROM promotions
- D. SELECT DISTINCT promo_cost, promo_category FROM promotions
Answer: B
NEW QUESTION 87
The INVOICE table has a QTY_SOLD column of data type NUMBER and an INVOICE_DATE column of data type DATE.
NLS_DATE_FORMAT is set to DD-MON-RR.
Which two are true about data type conversions involving these columns in query expressions? (Choose two.)
- A. invoice_date > '01-02-2019' : uses implicit conversion
- B. invoice_date = '15-march-2019' : uses implicit conversion
- C. qty_sold = '0554982' : requires explicit conversion
- D. CONCAT(qty_sold, invoice_date) : requires explicit conversion
- E. qty_sold BETWEEN '101' AND '110' : uses implicit conversion
Answer: B,E
NEW QUESTION 88
View the Exhibit and examine the data in the PROMOTIONS table.
PROMO_BEGIN_DATE is stored in the default date format, dd-mon-rr.
You need to produce a report that provides the name, cost, and start date of all promos in the POST category that were launched before January 1, 2000.
Which SQL statement would you use?
- A. SELECT promo_name, promo_cost, promo_begin_dateFROM promotionsWHERE promo_category =
'post' AND promo_begin_date < '01-01-00'; - B. SELECT promo_name, promo_cost, promo_begin_dateFROM promotionsWHERE promo_cost LIKE
'post%' AND promo_begin_date < '01-01-2000'; - C. SELECT promo_name, promo_cost, promo_begin_dateFROM promotionsWHERE promo_category LIKE 'P%' AND promo_begin_date < '1-JANUARY-00';
- D. SELECT promo_name, promo_cost, promo_begin_dateFROM promotionsWHERE promo_category LIKE '%post%' AND promo_begin_date < '1-JAN-00';
Answer: D
NEW QUESTION 89
View the Exhibit and examine the details of PRODUCT_INFORMATION table.
You have the requirement to display PRODUCT_NAME from the table where the CATEGORY_ID column has values 12 or 13, and the SUPPLIER_ID column has the value 102088. You executed the following SQL statement:
SELECT product_name
FROM product_information
WHERE (category_id = 12 AND category_id = 13) AND supplier_id = 102088;
Which statement is true regarding the execution of the query?
- A. It would execute but the output would return no rows.
- B. It would not execute because the same column has been used in both sides of the AND logical operator to form the condition.
- C. It would not execute because the entire WHERE clause condition is not enclosed within the parentheses.
- D. It would execute and the output would display the desired result.
Answer: A
NEW QUESTION 90
View the Exhibit and examine the structure of the PRODUCT table.
Which two tasks would require subqueries? (Choose two.)
- A. display the number of products whose list prices are more than the average list price
- B. display all products whose minimum list price is more than the average list price of products having the status 'orderable'
- C. display the minimum list price for each product status
- D. display all suppliers whose list price is more than 1000
- E. display the total number of products supplied by supplier 102 and have product status as 'OBSOLETE'
Answer: A,B
NEW QUESTION 91
Evaluate the following SQL statement:
SQL> select cust_id, cust_last_name "Last name"
FROM customers
WHERE country_id = 10
UNION
SELECT cust_id CUST_NO, cust_last_name
FROM customers
WHERE country_id = 30
Identify three ORDER BY clauses either one of which can complete the query. (Choose three.)
- A. ORDER BY 2,1
- B. ORDER BY CUST_NO
- C. ORDER BY 2, cust_id
- D. ORDER BY "CUST_NO"
- E. ORDER BY "Last name"
Answer: A,C,E
Explanation:
Explanation
Using the ORDER BY Clause in Set Operations
-The ORDER BY clause can appear only once at the end of the compound query.
-Component queries cannot have individual ORDER BY clauses.
-The ORDER BY clause recognizes only the columns of the first SELECT query.
-By default, the first column of the first SELECT query is used to sort the output in an ascending order.
NEW QUESTION 92
Which two statements are true regarding the USINGand ONclauses in table joins?
- A. The ON clause can be used to join tables on columns that have different names but compatible data types.
- B. Both USINGand ONclauses can be used for equijoins and nonequijoins.
- C. The WHEREclause can be used to apply additional conditions in SELECTstatements containing the ON or the USINGclause.
- D. A maximum of one pair of columns can be joined between two tables using the ONclause.
Answer: A,C
Explanation:
Explanation/Reference:
NEW QUESTION 93
Examine the data in the ORD_ITEMS table:
Evaluate this query:
Which statement is true regarding the result?
- A. It returns an error because all the aggregate functions used in the HAVINGclause must be specified in the SELECT list.
- B. It displays the item nos with their average quantity where the average quantity is more than double the overall minimum quantity of all the items in the table.
- C. It returns an error because the HAVINGclause should be specified after the GROUP BYclause.
- D. It displays the item nos with their average quantity where the average quantity is more than double the minimum quantity of that item in the table.
Answer: D
NEW QUESTION 94
View the exhibit and examine the description of the EMPLOYEES table. (Choose two.)
You executed this SQL statement:
SELECT first_name, department_id, salary
FROM employees
ORDER BY department_id, first_name, salary desc;
Which two statements are true regarding the result? (Choose two.)
- A. The values in the FIRST_NAME column would be returned in ascending order for all employees having the same value in the DEPARTMENT_ID column.
- B. The values in the SALARY column would be returned in descending order for all employees having the same value in the DEPARTMENT_ID and FIRST_NAME column.
- C. The values in the SALARY column would be returned in descending order for all employees having the same value in the DEPARTMENT_ID column.
- D. The values in all columns would be returned in descending order.
- E. The values in the FIRST_NAME column would be returned in descending order for all employees having the same value in the DEPARTMENT_ID column.
Answer: A,B
NEW QUESTION 95
Which three statements are true about the ALTER TABLE....DROP COLUMN....command?
- A. A parent key column in the table cannot be dropped.
- B. The column in a composite PRIMARY KEYwith the CASCADEoption can be dropped.
- C. A dropped column can be rolled back.
- D. A column can be dropped only if another column exists in the table.
- E. A column can be dropped only if it does not contain any data.
Answer: A,B,D
NEW QUESTION 96
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 97
Which three are true about privileges and roles?
- A. All roles are owned by the SYS schema.
- B. System privileges always set privileges for an entire database.
- C. A role is owned by the user who created it.
- D. PUBLICcan be revoked from a user.
- E. PUBLIC acts as a default role granted to every user in a database.
- F. A role can contain a combination of several privileges and roles.
- G. A user has all object privileges for every object in their schema by default.
Answer: E,F,G
Explanation:
Explanation/Reference: https://docs.oracle.com/cd/B19306_01/network.102/b14266/authoriz.htm#i1010570
NEW QUESTION 98
Examine the structure of the SALES table. (Choose two.)
Examine this statement:
Which two statements are true about the SALES1 table? (Choose two.)
- A. It has PRIMARY KEY and UNIQUE constraints on the selected columns which had those constraints in the SALES table.
- B. It will not be created because of the invalid WHERE clause.
- C. It will have NOT NULL constraints on the selected columns which had those constraints in the SALES table.
- D. It will not be created because the column-specified names in the SELECT and CREATE TABLE clauses do not match.
- E. It is created with no rows.
Answer: C,E
NEW QUESTION 99
......
Who should take the Oracle 1Z0-071: Oracle Database SQL Exam
This course is for software administrators, database designers, and system operators.
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