Nov 30, 2024 PASS Oracle 1z0-071 EXAM WITH UPDATED DUMPS
1z0-071 Questions PDF [2024] Use Valid New dump to Clear Exam
Oracle 1z0-071 exam covers a wide range of topics related to SQL databases. 1z0-071 exam is designed to test the candidate's knowledge of SQL language, SQL data manipulation, and SQL data retrieval. 1z0-071 exam also covers topics such as database security, database design, and database management. 1z0-071 exam consists of multiple-choice questions, and candidates are required to score at least 63% to pass.
NEW QUESTION # 104
Which three statements are true regarding indexes?
- A. An update to a table can result in updates to any or all of the table's indexes.
- B. A SELECT statement can access one or more indices without accessing any tables.
- C. When a table is dropped and is moved to the RECYCLE BIN, all Indexes built on that table are permanently dropped.
- D. An update to a table can result in no updates to any of the table's indexes.
- E. A table belonging to one user can have an index that belongs to a different user,
- F. A UNIQUE index can be altered to be non-unique.
Answer: A,B,F
Explanation:
Indexes are structures that can improve the retrieval time of data from a database table and have certain characteristics:
* A. A SELECT statement can access one or more indices without accessing any tables: If the index contains all the columns needed for the query, Oracle can retrieve the data from the index alone without accessing the table. This is known as an index-only scan.
* D. A UNIQUE index can be altered to be non-unique: It is possible to alter a unique index to become non-unique by using the ALTER INDEX command.
* F. An update to a table can result in updates to any or all of the table's indexes: If the updated column is part of one or more indexes, those indexes will need to be updated to reflect the change. If the updated column is not part of an index, then no index update is required.
References:
* Oracle Database SQL Language Reference 12c, especially sections on index management and the behavior of DML operations with respect to indexes.
NEW QUESTION # 105
Which two statements are true about the results of using the intersect operator in compound queries?
- A. Column names in each select in the compound query can be different.
- B. The number of columns in each select in the compound query can be different.
- C. intersect ignores nulls.
- D. Reversing the order of the intersected tables can sometimes affect the output.
- E. intersect returns rows common to both sides of the compound query.
Answer: A,E
Explanation:
C). True, the names of the columns in each SELECT statement of an INTERSECT query do not need to match, as long as the data types and order of the columns correspond.D. True, the INTERSECT operator returns only the rows that are common to both SELECT statements, effectively acting as a set intersection of the results from both queries.
References:
* Oracle documentation on INTERSECT operator: Oracle Database SQL Language Reference
* Detailed behavior of INTERSECT: Oracle Compound Queries
NEW QUESTION # 106
Which three statements are true about dropping and unused columns in an Oracle database?
- A. A primary key column referenced by another column as a foreign key can be dropped if using the CASCADE option.
- B. Partition key columns cannot be dropped.
- C. A DROP COLUMN command can be rolled back.
- D. A column that is set to NNUSED still counts towards the limit of 1000 columns per table.
- E. An UNUSED column's space is remained automatically when the block containing that column is next queried.
- F. An UNUSED column's space is remained automatically when the row containing that column is next queried.
Answer: B,C,D
Explanation:
* A. A primary key column referenced by another column as a foreign key can be dropped if using the CASCADE option. (Incorrect) Primary key columns that are referenced by foreign keys cannot be dropped as it would violate referential integrity. The CASCADE option does not apply in this context.
* B. A DROP COLUMN command can be rolled back. (Correct)
Dropping a column from a table is a transactional operation. If it's not committed, it can be rolled back.
NEW QUESTION # 107
Which two statements are true about outer Joins?
- A. The outer join operator (+) is used next to the column of the table without the matching rows.
- B. A condition representing an outer join cannot be linked to another condition using the or logical operator.
- C. An outer join is used to retrieve only the rows that do not meet the join condition.
- D. The outer join operator (+) can be used on both sides of the join condition in an outer join.
- E. The IN operator cannot be used in a condition that Involves an outer join.
Answer: B,E
NEW QUESTION # 108
Examine this SELECT statement and view the Exhibit to see its output:
SELECT constraints_name, constraints_type, search_condition, r_constraints_name, delete_rule, status, FROM user_constraints WHERE table_name = 'ORDERS'; Which two statements are true about the output? (Choose two.)
- A. The STATUS column indicates whether the table is currently in use.
- B. In the second column, 'c' indicates a check constraint.
- C. The R_CONSTRAINT_NAME column contains an alternative name for the constraint.
- D. The DELETE_RULE column indicates the desired state of related rows in the child table when the corresponding row is deleted from the parent table.
Answer: B,D
NEW QUESTION # 109
Which three statements are true about views in an Oracle database?
- A. Views can join tables only if they belong to the same schema.
- B. A SELECT statement cannot contain a where clause when querying a view containing a WHERE clause in its defining query
- C. A view can be created that refers to a non-existent table in its defining query.
- D. Views have no segment.
- E. Views have no object number.
- F. Rows inserted into a table using a view are retained in the table if the view is dropped
Answer: C,D,F
Explanation:
A view is a virtual table based on a SQL query.
A: This is incorrect because a SELECT statement querying a view can contain a WHERE clause, regardless of the view's defining query. C. This is incorrect because views can join tables from different schemas, not just the same schema. B. Correct. The rows inserted into a base table via a view remain in the table even if the view is dropped because the view is just a window to the data in the base tables. D. Correct. Views do not require storage space other than for the definition of the view in the data dictionary, hence they have no segment. E. Incorrect. Views do not have object numbers because they are not database objects that occupy physical space. F. Correct. You can create a view that references non-existent tables; such a view would be considered invalid until the base table is created.
The Oracle Database Concepts guide provides information about views and their characteristics.
NEW QUESTION # 110
You need to display the date 11-oct-2007 in words as 'Eleventh of October, Two Thousand Seven'.
Which SQL statement would give the required result?
- A. SELECT TO_CHAR (TO_DATE ('11-oct-2007'), 'fmDdthsp "of" Month, Year') FROM DUAL
- B. SELECT TO_CHAR ('11-oct-2007', 'fmDdspth "of" Month, Year')
FROM DUAL - C. SELECT TO_CHAR (TO_DATE ('11-oct-2007'), 'fmDdspth of month, year')
FROM DUAL - D. SELECT TO_DATE (TO_CHAR ('11-oct-2007'), 'fmDdspth "of" Month, Year')) FROM DUAL
Answer: C
NEW QUESTION # 111
View the exhibits and examine the structures of the COSTSand PROMOTIONStables.
Evaluate the following SQL statement:
What would be the outcome of the above SQL statement?
- A. It displays prod IDs in the promo with the lowest cost.
- B. It displays prod IDs in the promos with the lowest cost in the same time interval.
- C. It displays prod IDs in the promos which cost less than the highest cost in the same time interval.
- D. It displays prod IDs in the promos with the highest cost in the same time interval.
Answer: C
NEW QUESTION # 112
Examine the structure of the EMPLOYEEStable.
There is a parent/child relationship between EMPLOYEE_IDand MANAGER_ID.
You want to display the last names and manager IDs of employees who work for the same manager as the employee whose EMPLOYEE_IDis 123.
Which query provides the correct output?
- A. SELECT e.last_name, e.manager_id
FROM employees e RIGHT OUTER JOIN employees m
on (e.employee_id = m.employee_id)
WHERE e.employee_id = 123; - B. SELECT m.last_name, e.manager_id
FROM employees e LEFT OUTER JOIN employees m
on (e.manager_id = m.manager_id)
WHERE e.employee_id = 123; - C. SELECT e.last_name, m.manager_id
FROM employees e LEFT OUTER JOIN employees m
on (e.employee_id = m.manager_id)
WHERE e.employee_id = 123; - D. SELECT e.last_name, m.manager_id
FROM employees e RIGHT OUTER JOIN employees m
on (e.manager_id = m.employee_id)
AND e.employee_id = 123;
Answer: B
NEW QUESTION # 113
The ORDERS table has a column ORDER_DATE of date type DATE The default display format for a date is DD-MON-RR Which two WHERE conditions demonstrate the correct usage of conversion functions?
- A. WHERE order_date IN (TO_DATE ('Oct 21 2018','MON DD YYYY'), TO_CHAR('Nov 21
2018','MON DD YYYY')); - B. WHERE ordet_date> TO_CHAR(ADD_MONTHS(SYSDATE, 6),'MON DD YYYY')
- C. WHERE order_date> TO_DATE('JUL 10 2018','MON DD YYYY');
- D. WHERE TO_CHAR(order_date,'MON DD YYYY') ='JAN 20 2019';
- E. WHERE order_date> TO_DATE(ADD_MONTHS(SYSDATE,6),'MON DD YYYY');
Answer: C,D
NEW QUESTION # 114
Which three are true about the CREATE TABLE command?
- A. It implicitly rolls back any pending transactions.
- B. The owner of the table must have the UNLIMITED TABLESPACE system privilege.
- C. It can include the CREATE...INDEX statement for creating an index to enforce the primary key constraint.
- D. The owner of the table should have space quota available on the tablespace where the table is defined.
- E. A user must have the CREATE ANY TABLE privilege to create tables.
- F. It implicitly executes a commit.
Answer: C,D,F
NEW QUESTION # 115
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 generates an error because the alias is not valid.
- B. It executes successfully but does not give the correct output.
- C. It generates an error because the concatenation operator can be used to combine only two items.
- D. It generates an error because the usage of the ROUNDfunction in the expression is not valid.
- E. IT executes successfully and gives the correct output.
Answer: B
Explanation:
Explanation/Reference:
NEW QUESTION # 116
You need to list the employees in DEPARTMENT_ID 20 days in a single row, ordered by HIRE_DATE.
Examine the sample output:
Which query will provide the required output?
- A. SELECT LISTAGG(last_name, '; ') "Emp_list", MIN(hire_date) "Earliest" FROM employees WHERE department_id = 30; WITHIN GROUP ORDER BY (hire_date);
- B. SELECT LISTAGG(last_name, '; ') "Emp_list", MIN(hire_date) "Earliest" FROM employees WHERE department_id = 30; ORDER BY (hire_date);
- C. SELECT LISTAGG(last_name)
WITHIN GROUP ORDER BY (hire_date) "Emp_list", MIN(hire_date) "Earliest" FROM employees WHERE department_id = 30; - D. SELECT LISTAGG(last_name, '; ')
WITHIN GROUP ORDER BY (hire_date) "Emp_list", MIN(hire_date) "Earliest" FROM employees WHERE department_id = 30;
Answer: D
NEW QUESTION # 117
Which three are true about system and object privileges? (Choose three.)
- A. WITH GRANT OPTION can be used when granting an object privilege to both users and roles
- B. Adding a primary key constraint to an existing table in another schema requires a system privilege
- C. WITH GRANT OPTION cannot be used when granting an object privilege to PUBLIC
- D. Revoking an object privilege that was granted with the WITH GRANT OPTION clause has a cascading effect.
- E. Revoking a system privilege that was granted with WITH ADMIN OPTION has a cascading effect
- F. Adding a foreign key constraint pointing to a table in another schema requires the REFERENCES object privilege
Answer: A,D,F
Explanation:
Explanation
Reference https://docs.oracle.com/cd/B28359_01/network.111/b28531/authorization.htm#DBSEG004
NEW QUESTION # 118
In which normal form is a table, if it has no multi-valued attributes and no partial dependencies?
- A. second normal form
- B. third normal form
- C. first normal form
- D. fourth normal form
Answer: A
Explanation:
References:
https://blog.udemy.com/database-normal-forms/
NEW QUESTION # 119
View the Exhibit and examine the description for the PRODUCTS and SALEStable.
PROD_IDis a primary key in the PRODUCTStable and foreign key in the SALEStable with ON DELETE CASCADEoption. The SALEStable contains data for the last three years. You want to remove all the rows from the PRODUCTStable for which no sale was done for the last three years.
Which is the valid DELETEstatement?
DELETE
- A. FROM products
WHERE prod_id = (SELECT prod_id
FROM sales
WHERE SYSDATE >= time_id - 3*365 );
DELETE - B. FROM products
WHERE prod_id = (SELECT prod_id
FROM sales
WHERE time_id - 3*365 = SYSDATE );
DELETE - C. FROM products
WHERE prod_id IN (SELECT prod_id
FROM sales
WHERE time_id >= SYSDATE - 3*365 ); - D. FROM products
WHERE prod_id IN (SELECT prod_id
FROM sales
WHERE SYSDATE - 3*365 >= time_id);
DELETE
Answer: D
NEW QUESTION # 120
View the Exhibit and examine the data in the PROMOTIONStable.
PROMO_BEGIN_DATEis 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?
SELECT promo_name, promo_cost, promo_begin_date
- A. FROM promotions
WHERE promo_category = 'post' AND promo_begin_date < '01-01-00';
SELECT promo_name, promo_cost, promo_begin_date - B. FROM promotions
WHERE promo_category LIKE '%post%' AND promo_begin_date < '1-JAN-00'; - C. FROM promotions
WHERE promo_category LIKE 'P%' AND promo_begin_date < '1-JANUARY-00';
SELECT promo_name, promo_cost, promo_begin_date - D. FROM promotions
WHERE promo_cost LIKE 'post%' AND promo_begin_date < '01-01-2000';
SELECT promo_name, promo_cost, promo_begin_date
Answer: B
NEW QUESTION # 121
Which two are true about a SQL statement using SET operators such as UNION?
- A. The data type of each column returned by the second query must exactly match the data type of the corresponding column returned by the first query.
- B. The data type group of each column returned by the second query must match the data type group of the corresponding column returned by the first query.
- C. The number, but not names, of columns must be identical for all SELECT statements in the query.
- D. The data type of each column returned by the second query must be implicitly convertible to the data type of the corresponding column returned by the first query.
- E. The names and number of columns must be identical for all SELECT statements in the query.
Answer: A,C
NEW QUESTION # 122
View the Exhibit and examine the structure of the ORDERS table. (Choose the best answer.) You must select ORDER_ID and ORDER_DATE for all orders that were placed after the last order placed by CUSTOMER_ID 101.
Which query would give you the desired result?
- A. SELECT order_id, order_date FROM ordersWHERE order_date > IN(SELECT
order_date FROM orders WHERE customer_id = 101); - B. SELECT order_id, order_date FROM ordersWHERE order_date > ANY(SELECT order_date FROM orders WHERE customer_id = 101);
- C. SELECT order_id, order_date FROM ordersWHERE order_date > ALL(SELECT order_date FROM orders WHERE customer_id = 101);
- D. SELECT order_id, order_date FROM ordersWHERE order_date > ALL(SELECT MAX(order_date) FROM orders ) AND customer_id = 101;
Answer: C
NEW QUESTION # 123
Evaluate the following two queries:
SQL> SELECT cust_last_name, cust_city
FROM customers
WHERE cust_credit_limit IN (1000, 2000, 3000);
SQL> SELECT cust_last_name, cust_city
FROM customers
WHERE cust_credit_limit = 1000 or cust_credit_limit = 2000 or
cust_credit_limit = 3000
Which statement is true regarding the above two queries?
- A. There would be no change in performance.
- B. Performance would improve in query 2.
- C. Performance would improve in query 2 only if there are null values in the CUST_CREDIT_LIMIT column.
- D. Performance would degrade in query 2.
Answer: A
NEW QUESTION # 124
Which three statements are true about single-row functions? (Choose three.)
- A. The data type returned can be different from the data type of the argument
- B. They return a single result row per table
- C. They can be used only in the WHERE clause of a SELECT statement
- D. The argument can be a column name, variable, literal or an expression
- E. They can be nested to any level
- F. They can accept only one argument
Answer: A,D
NEW QUESTION # 125
View the Exhibit and examine the structure of CUSTOMERStable.
Evaluate the following query:
Which statement is true regarding the above query?
- A. It produces an error because the condition on the CUST_FIRST_NAMEcolumn is not valid.
- B. It produces an error because the condition on the CUST_CITYcolumn is not valid.
- C. It produces an error because conditions on the CUST_CREDIT_LIMITcolumn are not valid.
- D. It executes successfully.
Answer: D
NEW QUESTION # 126
......
The Oracle 1z0-071 exam consists of 73 multiple-choice questions, and candidates have 100 minutes to complete the exam. 1z0-071 exam covers a wide range of topics, including SQL SELECT statements, subqueries, joins, data manipulation language (DML), data definition language (DDL), data control language (DCL), and data administration. 1z0-071 exam is suitable for individuals who are new to SQL and Oracle Database, as well as those who have some experience and want to advance their skills and knowledge. Successful candidates will earn the Oracle Database SQL Certified Associate certification, which is recognized worldwide and can help candidates stand out from their competition in the job market.
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