Pass Your Oracle PL/SQL Developer Certified Associate 1z0-071 Exam Easily with Accurate PDF Questions [Jul 31, 2026]
1z0-071 Certification Exam Dumps Questions in here
NEW QUESTION # 209
View the exhibit and examine the data in ORDERS_MASTERand MONTHLY_ORDERStables.
Evaluate the following MERGEstatement:
MERGE_INTO orders_master o
USING monthly_orders m
ON (o.order_id = m.order_id)
WHEN MATCHED THEN
UPDATE SET o.order_total = m.order_total
DELETE WHERE (m.order_total IS NULL)
WHEN NOT MATCHED THEN
INSERT VALUES (m.order_id, m.order_total)
What would be the outcome of the above statement?
- A. The ORDERS_MASTERtable would contain the ORDER_IDs1, 2, 3 and 4.
- B. The ORDERS_MASTERtable would contain the ORDER_IDs1, 2 and 4.
- C. The ORDERS_MASTERtable would contain the ORDER_IDs1, 2 and 3.
- D. The ORDERS_MASTERtable would contain the ORDER_IDs1 and 2.
Answer: B
Explanation:
Explanation/Reference:
References:
https://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_9016.htm
NEW QUESTION # 210
You must create a SALES table with these column specifications and data types: (Choose the best answer.) SALESID: Number STOREID: Number ITEMID: Number QTY: Number, should be set to 1 when no value is specified SLSDATE: Date, should be set to current date when no value is specified PAYMENT: Characters up to 30 characters, should be set to CASH when no value is specified Which statement would create the table?
- A. CREATE TABLE Sales(SALESID NUMBER (4),STOREID NUMBER (4),ITEMID NUMBER (4),qty NUMBER DEFAULT = 1,SLSDATE DATE DEFAULT SYSDATE,PAYMENT VARCHAR2(30) DEFAULT = "CASH");
- B. CREATE TABLE Sales(SALESID NUMBER (4),STOREID NUMBER (4),ITEMID NUMBER (4),QTY NUMBER DEFAULT = 1,SLSDATE DATE DEFAULT 'SYSDATE',PAYMENT VARCHAR2(30) DEFAULT CASH);
- C. CREATE TABLE Sales(SALESID NUMBER (4),STOREID NUMBER (4),ITEMID NUMBER (4),QTY NUMBER DEFAULT = 1,SLSDATE DATE DEFAULT SYSDATE,PAYMENT VARCHAR2(30) DEFAULT = "CASH");
- D. Create Table sales(salesid NUMBER (4),Storeid NUMBER (4),Itemid NUMBER (4),QTY NUMBER DEFAULT 1,Slsdate DATE DEFAULT SYSDATE,payment VARCHAR2(30) DEFAULT 'CASH');
Answer: D
NEW QUESTION # 211
Examine the structure of the EMPLOYEES table.
You must display the details of employees who have manager with MANAGER_ID 100, who were hired in the past 6 months and who have salaries greater than 10000.
Which query would retrieve the required result?
- A. SELECT last_name, hire_date, salaryFROM employeesWHERE salary > 10000UNION ALLSELECT last_name, hire_date, salaryFROM employeesWHERE manager_ID = (SELECT employee_id FROM employees WHERE employee_id = 100)INTERSECTSELECT last_name, hire_date, salaryFROM employeesWHERE hire_date > SYSDATE-180;
- B. SELECT last_name, hire_date, salaryFROM employeesWHERE manager_id = (SELECT employee_id FROM employees WHERE employee_id = '100')UNIONSELECT last_name, hire_date, salaryFROM employeesWHERE hire_date > SYSDATE-180INTERSECTSELECT last_name, hire_date, salaryFROM employeesWHERE salary > 10000;
- C. (SELECT last_name, hire_date, salaryFROM employeesWHERE salary > 10000UNION ALLSELECT last_name, hire_date, salaryFROM employeesWHERE manager_ID = (SELECT employee_id FROM employees WHERE employee_id = 100))UNIONSELECT last_name, hire_date, salaryFROM employeesWHERE hire_date > SYSDATE-180;
- D. SELECT last_name, hire_date, salaryFROM employeesWHERE manager_id = (SELECT employee_id FROM employees WHERE employee_id = 100)UNION ALL(SELECT last_name, hire_date, salaryFROM employeesWHERE hire_date > SYSDATE-180INTERSECTSELECT last_name, hire_date, salaryFROM employeesWHERE salary > 10000);
Answer: B
NEW QUESTION # 212
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 student_name,SUM(subject1)FROM marksWHERE student_name LIKE 'R%';
- C. SELECT student_name subject1FROM marksWHERE subject1 > AVG(subject1);
- D. SELECT SUM(DISTINCT NVL(subject1,0)), MAX(subject1)FROM marksWHERE subject1 > subject2;
Answer: A,D
NEW QUESTION # 213
Which two statements are true regarding the DELETEand TRUNCATEcommands? (Choose two.)
- A. DELETEcan be used to remove rows from multiple tables in one statement.
- B. DELETEcan be used to remove rows only for tables that are parents for a child table that has a referential integrity constraint referring to the parent.
- C. DELETEcan be used to remove data from specific columns as well as complete rows.
- D. DELETEand TRUNCATEcan be used for tables that are parents for a child table that has a referential integrity constraint having an ON DELETErule.
- E. DELETEcan be used to remove rows from only one table in one statement.
Answer: D,E
NEW QUESTION # 214
What is true about non-equijoin statement performance?
- A. The between condition always performs less well than using the >= and <= conditions.
- B. The join syntax used makes no difference to performance.
- C. Table aliases can improve performance.
- D. The Oracle join syntax performs better than the SQL: 1999 compliant ANSI join syntax.
- E. The between condition always performs better than using the >= and <= conditions.
Answer: B
Explanation:
Performance implications related to non-equijoin SQL statements in Oracle Database are often a topic of optimization:
* C. The join syntax used makes no difference to performance: In Oracle Database, the performance of a query involving joins is typically more dependent on factors like the underlying data distribution, indexes, optimizer statistics, and system configuration rather than the syntax (ANSI vs Oracle traditional syntax). The optimizer in Oracle is sophisticated enough to interpret different syntactical expressions of joins and optimize them accordingly.
References:
* Oracle Database Performance Tuning Guide 12c, which discusses the impact of different join syntaxes and how Oracle's optimizer handles them.
NEW QUESTION # 215
Examine the description of the CUSTOMERS table:
You need to display last names and credit limits of all customers whose last name starts with A or B In lower or upper case, and whose credit limit is below 1000.
Examine this partial query:
SELECT cust_last_nare, cust_credit_limit FROM customers
Which two WHERE conditions give the required result?
- A. WHERE UPPER(cust_last_name) IN ('A%', 'B%') AND cust_credit_limit < 1000:
- B. WHERE (UPPER(cust_last_name) like INITCAP ('A') OR UPPER(cust_last_name) like INITCAP('B')) AND ROUND(cust_credit_limit) < ROUND(1000) ;
- C. WHERE (INITCAP(cust_last_name) LIKE 'A%' OR ITITCAP(cust_last_name) LIKE 'B%') AND cust_credit_limit < 1000
- D. WHERE UPPER(cust_last_name) BETWEEN UPPER('A%' AND 'B%') AND
ROUND(cust_credit_limit) < 1000; - E. WHERE (UPPER(cust_last_name) LIKE 'A%' OR UPPER(cust_last_name) LIKE 'B%') AND ROUND(cust_credit_limit) < 1000;
Answer: C,E
Explanation:
The SQL query must find all customers with last names starting with A or B, regardless of case, and a credit limit below 1000:
* B. WHERE (INITCAP(cust_last_name) LIKE 'A%' OR INITCAP(cust_last_name) LIKE 'B%') AND cust_credit_limit < 1000: The INITCAP function initializes the first letter to uppercase for comparison. However, it should be noted that using INITCAP is not necessary when using the LIKE operator with a wildcard % following a single character, because it will not correctly filter all last names that start with an upper or lower case A or B.
* D. WHERE (UPPER(cust_last_name) LIKE 'A%' OR UPPER(cust_last_name) LIKE 'B%') AND cust_credit_limit < 1000: This correctly filters last names beginning with A or B in any case and includes only those with a credit limit below 1000. The UPPER function is used to convert cust_last_name to uppercase before comparison.
References:
* Oracle Database SQL Language Reference 12c, especially sections on string functions and conditions.
NEW QUESTION # 216
Examine these SQL statements which execute successfully:
Which two statements are true after execution? (Choose two.)
- A. The primary key constraint will be enabled and DEFERRED.
- B. The primary key constraint will be enabled and IMMEDIATE.
- C. The foreign key constraint will be enabled and IMMEDIATE.
- D. The foreign key constraint will be disabled.
- E. The foreign key constraint will be enabled and DEFERRED.
Answer: B,D
NEW QUESTION # 217
Which three are true about multitable INSERTstatements? (Choose three.)
- A. They can be performed only by using a subquery.
- B. They can be performed on remote tables.
- C. They can insert each computed row into more than one table.
- D. They can be performed on external tables using SQL* Loader.
- E. They can be performed on views.
- F. They can be performed on relational tables.
Answer: C,D,F
NEW QUESTION # 218
View the exhibit and examine the structure of the CUSTOMERS table.
Which two tasks would require subqueries or joins to be executed in a single statement? (Choose two.)
- A. listing of those customers, whose credit limit is the same as the credit limit of customers residing in the city 'Tokyo'.
- B. finding the number of customers, in each city, whose credit limit is more than the average credit limit of all the customers
- C. finding the average credit limit of male customers residing in 'Tokyo' or 'Sydney'
- D. listing of customers who do not have a credit limit and were born before 1980
- E. finding the number of customers, in each city, whose marital status is 'married'.
Answer: A,B
NEW QUESTION # 219
Which two statements are true about Data Manipulation Language (DML) statements? (Choose two.)
- A. An UPDATE....SET.... statement can modify multiple rows based on only a single condition on a table.
- B. An UPDATE... SET... statement can modify multiple rows based on multiple conditions on a table.
- C. A DELETE FROM..... statement can remove multiple rows based on multiple conditions on a table.
- D. An INSERT INTO... VALUES..... statement can add a single row based on multiple conditions on a table.
- E. A DELETE FROM..... statement can remove rows based on only a single condition on a table.
- F. An INSERT INTO...VALUES.. statement can add multiple rows per execution to a table.
Answer: B,C
Explanation:
References:
http://www.techonthenet.com/sql/and_or.php
NEW QUESTION # 220
View the exhibit and examine the structure in ORDERS and ORDER_ITEMS tables.
You need to create a view that displays the ORDER_ID, ORDER_DATE, and the total number of items in each order.
Which CREATE VIEW statement would create the views successfully?
- A. CREATE OR REPLACE VIEW ord_vuAS SELECT o.order_id, o.order_date, COUNT (i.line_item_id) ||"NO OF ITEMS"FROM orders o JOIN order_items iON (o.order_id = i.order_id)GROUP BY o.order_id, o.order_dateWHITH CHECK OPTION;
- B. CREATE OR REPLACE VIEW ord_vuAS SELECT o.order_id, o.order_date, COUNT (i.line_item_id)FROM orders o JOIN order_items iON (o.order_id = i.order_id)GROUP BY o.order_id, o.order_date;
- C. CREATE OR REPLACE VIEW ord_vuAS SELECT o.order_id, o.order_date, COUNT (i.line_item_id)"NO OF ITEMS"FROM orders o JOIN order_items iON (o.order_id = i.order_id)GROUP BY o.order_id, o.order_date;
- D. CREATE OR REPLACE VIEW ord_vu (order_id, order_date)AS SELECT o.order_id, o.order_date, COUNT (i.line_item_id)"NO OF ITEMS"FROM orders o JOIN order_items iON (o.order_id = i.order_id)GROUP BY o.order_id, o.order_date;
Answer: C
NEW QUESTION # 221
The first DROP operation is performed on PRODUCTS table using this command:
DROP TABLE products PURGE;
Then a FLASHBACK operation is performed using this command:
FLASHBACK TABLE products TO BEFORE DROP;
Which is true about the result of the FLASHBACK command?
- A. It recovers the table structure, data, and the indexes.
- B. It is not possible to recover the table structure, data, or the related indexes.
- C. It recovers only the table structure.
- D. It recovers the table structure and data but not the related indexes.
Answer: B
Explanation:
Explanation
https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_9003.htm
NEW QUESTION # 222
In your session, the NLS._DAE_FORMAT is DD- MM- YYYY.There are 86400 seconds in a day.Examine this result:
DATE
02-JAN-2020
Which statement returns this?
- A. SELECT To CHAR(TO _DATE('29-10-2019') + INTERVAL '2' NONTH + INTERVAL '5' DAY INEERVAL '120' SECOND, ' DD-MON-YYY) AS "date" FROM DUAL;
- B. SELECT-TO_CHAR(TO _DATE('29-10-2019'+ INTERVAL '2' MONTH+INTERVAL '6' DAYINTERVAL '120' SECOND, 'DD-MON-YY') AS "daTe"FROM DUAL;
- C. SELECT TO_ CHAR(TO_ DATE('29-10-2019') + INTERVAL '3' MONTH + INTERVAL '7' DAY - INTERVAL '360' SECOND, ' DD-MON-YYYY') AS "date" FROM DUAL;
- D. SELECT-TO_CHAR(TO _DATE('29-10-2019'+ INTERVAL '2' MONTH+INTERVAL '4' DAYINTERVAL '120' SECOND, 'DD-MON-YY') AS "daTe" FROM DUAL;
- E. SELECT TO_ CHAR(TO_ DATE('29-10-2019') +INTERVAL '2'; MONTH + INTERVAL '5'; DAY - INTERVAL '86410' SECOND, ' DD-MON-YYYY') AS "date" FROM DUAL;
Answer: A
NEW QUESTION # 223
Examine these SQL statements which execute successfully:
Which two statements are true after execution?
- A. The primary key constraint will be enabled and IMMEDIATE.
- B. The foreign key constraint will be enabled and IMMEDIATE.
- C. The primary key constraint will be enabled and DEFERRED.
- D. The foreign key constraint will be disabled.
- E. The foreign key constraint will be enabled and DEFERRED.
Answer: B,C
NEW QUESTION # 224
View the Exhibit and examine the description of the ORDERS table.
Which two WHERE clause conditions demonstrate the correct usage of conversion functions?
(Choose two.)
- A. WHERE TO_CHAR(order_date,'MON DD YYYY') = 'JAN 20 2003'
- B. WHERE order_date > TO_CHAR(ADD_MONTHS(SYSDATE,6),'MON DD YYYY')
- C. WHERE order_date_IN ( TO_DATE('OCT 21 2003','MON DD YYYY'), TO_CHAR('NOV 21
2003','MON DD YYYY') ) - D. WHERE order_date > TO_DATE('JUL 10 2006','MON DD YYYY')
Answer: A,D
NEW QUESTION # 225
You want to write a query that prompts for two column names and the WHERE condition each time it is executed in a session but only prompts for the table name the first time it is executed.
The variables used in your query are never undefined in your session?
Which query can be used?
- A.
- B.
- C.
- D.
- E.
Answer: B
NEW QUESTION # 226
Refer to the exhibit.
Which two queries only return CUBE?
- A. SELECT shape FROM bricks JOIN boxes ON NOT (weight > max_weight);
- B. SELECT shape FROM bricks JOIN boxes ON weight < max_weight;
- C. SELECT shape FROM bricks JOIN boxes ON weight >= min_weight AND weight < max_weight;
- D. SELECT shape FROM bricks JOIN boxes ON weight BETWEEN min_weight AND max_weight;
- E. SELECT shape FROM bricks JOIN boxes ON weight > min_weight;
Answer: C,D
NEW QUESTION # 227
Examine this query:
Which two methods should you use to prevent prompting for a hire date value when this query is executed?
(Choose two.)
- A. Execute the SET VERIFY ONcommand before executing the query.
- B. Use the DEFINEcommand before executing the query.
- C. Use the UNDEFINEcommand before executing the query.
- D. Replace '&1'with '&&1'in the query.
- E. Execute the SET VERIFY OFF command before executing the query.
- F. Store the query in a script and pass the substitution value to the script when executing it.
Answer: A,F
NEW QUESTION # 228
Examine this SELECT statement and view the Exhibit to see its output: (Choose two.)
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?
- A. The R_CONSTRAINT_NAME column contains an alternative name for the constraint.
- B. 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.
- C. The STATUS column indicates whether the table is currently in use.
- D. In the second column, 'c' indicates a check constraint.
Answer: B,D
NEW QUESTION # 229
You issue the following command to drop the PRODUCTS table:
SQL>DROP TABLE products;
What is the implication of this command? (Choose all that apply.)
- A. The pending transaction in the session is committed
- B. All data in the table are deleted but the table structure will remain
- C. All indexes on the table will remain but they are invalidated
- D. All data along with the table structure is deleted
- E. All views and synonyms will remain but they are invalidated
Answer: A,D,E
NEW QUESTION # 230
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'), `fmDdspth "of" month, Year') FROM DUAL
- B. SELECT TO_DATE (TO_CHAR ('11-oct-2007'), `fmDdspth "of" Month, Year')) FROM DUAL
- C. SELECT TO_CHAR (TO_DATE ('11-oct-2007'), `fmDdthsp "of" Month, Year') FROM DUAL
- D. SELECT TO_CHAR (`11-oct-2007', `fmDdspth "of" Month, Year') FROM DUAL
Answer: A
Explanation:
http://docs.oracle.com/cd/B12037_01/server.101/b10759/sql_elements004.htm#BABGDDFB Test Result:
A,
scott@TEST0924> SELECT TO_CHAR('11-oct-2007', 'fmDdspth "of" Month, Year') FROM DUAL; SELECT TO_CHAR('11-oct-2007', 'fmDdspth "of" Month, Year') FROM DUAL
* ERROR at line 1:
ORA-01722: invalid number
B
scott@TEST0924> SELECT TO_CHAR(TO_DATE('11-oct-2007'), 'fmDdspth of month, year') FROM DUAL; SELECT TO_CHAR(TO_DATE('11-oct-2007'), 'fmDdspth of month, year') FROM DUAL
* ERROR at line 1:
ORA-01821: date format not recognized
C
scott@TEST0924> SELECT TO_CHAR(TO_DATE('11-oct-2007'), 'fmDdthsp "of" Month, Year') FROM DUAL; TO_CHAR(TO_DATE('11-OCT-2007'),'FMDDTHS
---------------------------------------
Eleventh of October, Two Thousand Seven
D
scott@TEST0924> SELECT TO_DATE(TO_CHAR('11-oct-2007','fmDdspth ''of'' Month, Year')) FROM DUAL; SELECT TO_DATE(TO_CHAR('11-oct-2007','fmDdspth ''of'' Month, Year')) FROM DUAL
* ERROR at line 1:
ORA-01722: invalid number
---------------------
NEW QUESTION # 231
Examine the description of the EMPLOYEES table
You write this failing statement:
SELECT dept_no AS department_id, MAX (salary) As max_sal
FROM employees
WHERE salary >10000
GROUP BY department_id
ORDER BY max_sal;
Which clause causes the error?
- A. SELECT
- B. WHERE
- C. ORDER BY
- D. GROUP BY
Answer: D
NEW QUESTION # 232
......
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