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Exam Oracle Datbase 12c SQL
Number 1z0-071
File Name Oracle.PracticeDumps.1z0-071.2018-01-03.1e.72q.vcex
Size 4.64 Mb
Posted May 10, 2018

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Demo Questions

Question 1

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. 


  • A: ORDER BY "Last name"
  • B: ORDER BY 2, cust_id
  • C: ORDER BY CUST_NO
  • D: ORDER BY 2, 1
  • E: ORDER BY "CUST_NO"
Question 2

Which three statements are true regarding the WHERE and HAVING clauses in a SQL statement? (Choose three.)


  • A: WHERE and HAVING clauses cannot be used together in a SQL statement.
  • B: The HAVING clause conditions can have aggregate functions.
  • C: The HAVING clause conditions can use aliases for the columns.
  • D: The WHERE clause is used to exclude rows before the grouping of data.
  • E: The HAVING clause is used to exclude one or more aggregated results after grouping data.
Question 3

Which statement is true regarding external tables?


  • A: The CREATE TABLE AS SELECT statement can be used to upload data into regular table in the database from an external table.
  • B: The data and metadata for an external table are stored outside the database.
  • C: The default REJECT LIMIT for external tables is UNLIMITED.
  • D: ORACLE_LOADER and ORACLE_DATAPUMP have exactly the same functionality when used with an external table.
Question 4

Which two statements are true about Data Manipulation Language (DML) statements?


  • A: An INSERT INTO...VALUES.. statement can add multiple rows per execution to 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 rows based on only a single condition 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 multiple rows based on multiple conditions on a table.
  • F: An UPDATE....SET.... statement can modify multiple rows based on only a single condition on a table.
Question 5

Which two statements are true regarding roles? (Choose two.)


  • A: A role can be granted to itself.
  • B: A role can be granted to PUBLIC.
  • C: A user can be granted only one role at any point of time.
  • D: The REVOKE command can be used to remove privileges but not roles from other users.
  • E: Roles are named groups of related privileges that can be granted to users or other roles.
Question 6

Which two statements are true regarding constraints? (Choose two)


  • A: A constraint is enforced only for an INSERT operation on a table.
  • B: A foreign key cannot contain NULL values.
  • C: The column with a UNIQUE constraint can store NULLS.
  • D: You can have more than one column in a table as part of a primary key.
Question 7

Evaluate the following statement. 
INSERT ALL 
  WHEN order_total < 10000 THEN 
    INTO small_orders 
  WHEN order_total > 10000 AND order_total < 20000 THEN 
    INTO medium_orders 
  WHEN order_total > 200000 AND order_total < 20000 THEN 
    INTO large_orders 
  SELECT order_id, order_total, customer_id 
    FROM orders; 
Which statement is true regarding the evaluation of rows returned by the subquery in the INSERT statement?


  • A: They are evaluated by all the three WHEN clauses regardless of the results of the evaluation of any other WHEN clause.
  • B: They are evaluated by the first WHEN clause. If the condition is true, then the row would be evaluated by the subsequent WHEN clauses.
  • C: They are evaluated by the first WHEN clause. If the condition is false, then the row would be evaluated by the subsequent WHEN clauses.
  • D: The insert statement would give an error because the ELSE clause is not present for support in case none of WHEN clauses are true.
Question 8

Examine the structure of the MEMBERS table:


You want to display details of all members who reside in states starting with the letter A followed by exactly one character. 
Which SQL statement must you execute? 


  • A: SELECT * FROM MEMBERS WHERE state LIKE '%A_';
  • B: SELECT * FROM MEMBERS WHERE state LIKE 'A_';
  • C: SELECT * FROM MEMBERS WHERE state LIKE 'A_%';
  • D: SELECT * FROM MEMBERS WHERE state LIKE 'A%';
Question 9

You want to display 5 percent of the rows from the SALES table for products with the lowest AMOUNT_SOLD and also want to include the rows that have the same AMOUNT_SOLD even if this causes the output to exceed 5 percent of the rows. 
Which query will provide the required result? 



  • A: SELECT prod_id, cust_id, amount_sold
    FROM sales
    ORDER BY amount_sold
    FETCH FIRST 5 PERCENT ROWS WITH TIES;
  • B: SELECT prod_id, cust_id, amount_sold
    FROM sales
    ORDER BY amount_sold
    FETCH FIRST 5 PERCENT ROWS ONLY WITH TIES;
  • C: SELECT prod_id, cust_id, amount_sold
    FROM sales
    ORDER BY amount_sold
    FETCH FIRST 5 PERCENT ROWS WITH TIES ONLY;
  • D: SELECT prod_id, cust_id, amount_sold
    FROM sales
    ORDER BY amount_sold
    FETCH FIRST 5 PERCENT ROWS ONLY;
Question 10

Examine the structure of the MEMBERS table:


You execute the SQL statement:
SQL > SELECT member_id, ' ' , first_name, ' ' , last_name "ID FIRSTNAME LASTNAME " FROM members; 
What is the outcome?


  • A: It fails because the alias name specified after the column names is invalid.
  • B: It fails because the space specified in single quotation marks after the first two column names is invalid.
  • C: It executes successfully and displays the column details in a single column with only the alias column heading.
  • D: It executes successfully and displays the column details in three separate columns and replaces only the last column heading with the alias.



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