Oracle 1Z0-071 Oracle Database 12c SQL Online Training

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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. (Choose three.)

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

3. Which statement is true regarding external tables?

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

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

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

7. Evaluate the following statement.

Which statement is true regarding the evaluation of rows returned by the subquery in the INSERT statement?

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?

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?

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?


 

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