1Z0-071 TRAINING STUDY TORRENT & 1Z0-071 GUARANTEED VALID QUESTIONS & 1Z0-071 EXAM TEST SIMULATOR

1z0-071 training study torrent & 1z0-071 guaranteed valid questions & 1z0-071 exam test simulator

1z0-071 training study torrent & 1z0-071 guaranteed valid questions & 1z0-071 exam test simulator

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Oracle 1z1-071 exam covers a wide range of topics related to SQL and the Oracle Database, including SQL SELECT statements, data manipulation, and database objects. 1z0-071 exam also covers advanced topics such as subqueries, data modeling, and database security. 1z0-071 exam is designed to test the candidate's ability to work with SQL in a real-world environment and solve complex problems.

Oracle 1z1-071 (Oracle Database SQL) Certification Exam is designed for individuals who want to demonstrate their expertise in SQL and database management. Oracle Database SQL certification exam is highly regarded in the industry and is recognized globally. Passing 1z0-071 Exam validates an individual's knowledge and skills in SQL, which is essential for any database administrator or developer.

Oracle Database SQL Sample Questions (Q105-Q110):

NEW QUESTION # 105
View the Exhibit and examine the details of PRODUCT_INFORMATIONtable.

You have the requirement to display PRODUCT_NAMEfrom the table where the CATEGORY_IDcolumn has values 12or 13, and the SUPPLIER_IDcolumn 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 not execute because the entire WHEREclause condition is not enclosed within the parentheses.
  • B. It would execute but the output would return no rows.
  • C. It would not execute because the same column has been used in both sides of the ANDlogical operator to form the condition.
  • D. It would execute and the output would display the desired result.

Answer: B


NEW QUESTION # 106
Which three privileges can be restricted to a subset of columns in a table?

  • A. INSERT
  • B. DELETE
  • C. SELECT
  • D. UPDATE
  • E. REFERENCES
  • F. INDEX
  • G. ALTER

Answer: A,D,E


NEW QUESTION # 107
Examine this SQL statement:

Which two are true?

  • A. The subquery is executed for every updated row in the ORDERS table.
  • B. The UPDATE statement executes successfully even if the subquery selects multiple rows.
  • C. The subquery is executed before the UPDATE statement is executed.
  • D. All existing rows in the ORDERS table are updated.
  • E. The subquery is not a correlated subquery.

Answer: A,C

Explanation:
The provided SQL statement is an update statement that involves a subquery which is correlated to the main query.
* A. The subquery is executed before the UPDATE statement is executed. (Incorrect) This statement is not accurate in the context of correlated subqueries. A correlated subquery is one where the subquery depends on values from the outer query. In this case, the subquery is executed once for each row that is potentially updated by the outer UPDATE statement because it references a column from the outer query (o.customer_id).
* B. All existing rows in the ORDERS table are updated. (Incorrect)
Without a WHERE clause in the outer UPDATE statement, this would typically be true. However, the correctness of this statement depends on the actual data and presence of matching customer_id values in both tables. If there are rows in the ORDERS table with customer_id values that do not exist in the CUSTOMERS table, those rows will not be updated.
* C. The subquery is executed for every updated row in the ORDERS table. (Correct) Because the subquery is correlated (references o.customer_id from the outer query), it must be executed for each row to be updated in the ORDERS table to get the corresponding cust_last_name from the CUSTOMERS table.


NEW QUESTION # 108
You create a table by using this command:
CREATE TABLE rate_list (rate NUMBER(6,2));
Which two are true about executing statements? (Choose two.)

  • A. INSERT INTO rate_list VALUES (87654.556)inserts the value as 87654.6.
  • B. INSERT INTO rate_list VALUES (-99.99)inserts the value as 99.99.
  • C. INSERT INTO rate_list VALUES (-10)produces an error.
  • D. INSERT INTO rate_list VALUES (-.9)inserts the value as -.9.
  • E. INSERT INTO rate_list VALUES (0.551)inserts the value as .55.
  • F. INSERT INTO rate_list VALUES (0.999) produces an error.

Answer: D,E


NEW QUESTION # 109
Examine this SQL statement:
DELETE FROM employees e
WHERE EXISTS
(SELECT'dummy'
FROM emp_history
WHERE employee_id = e.employee_id)
Which two are true?

  • A. The subquery is executed before the DELETE statement is executed.
  • B. The subquery is executed for every row in the EMPLOYEES table.
  • C. All existing rows in the EMPLOYEE table are deleted.
  • D. The DELETE statement executes successfully even if the subquery selects multiple rows.
  • E. The subquery is not a correlated subquery.

Answer: B,D

Explanation:
The provided DELETE statement uses a correlated subquery to determine which rows should be deleted from the EMPLOYEES table.
* A. The subquery is indeed executed for every row in the EMPLOYEES table. This is because it references e.employee_id, which is a column from the outer query, making it a correlated subquery.
* B. The subquery is a correlated subquery, as explained above.
* C. The subquery is executed for each row, not before the DELETE statement.
* D. Not all existing rows in the EMPLOYEES table are deleted, only those that have a corresponding employee_id in the EMP_HISTORY table.
* E. The DELETE statement executes successfully even if the subquery selects multiple rows because the EXISTS condition only checks for the presence of rows, not their count.
References:
* Oracle Database SQL Language Reference 12c Release 1 (12.1), DELETE Statement
* Oracle Database SQL Language Reference 12c Release 1 (12.1), Subquery Factoring
* Oracle Database SQL Language Reference 12c Release 1 (12.1), Correlated Subqueries


NEW QUESTION # 110
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