Download Oracle.1z0-071.ActualTests.2020-05-27.212q.tqb
| Vendor: | Oracle |
| Exam Code: | 1z0-071 |
| Exam Name: | Oracle Datbase 12c SQL |
| Date: | May 27, 2020 |
| File Size: | 12 MB |
| Downloads: | 1 |
Demo Questions
Question 1
Examine this statement:
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 any one of which can complete the query successfully.
- ORDER BY "Last name"
- ORDER BY 2, cust_id
- ORDER BY CUST_NO
- ORDER BY 2, 1
- ORDER BY "CUST_NO"
Correct answer: ABD
Explanation:
Using the ORDER BY Clause in Set Operations The ORDER BY clause can appear only once at the end of the compound query. Component queries cannot have individual ORDER BY clauses. The ORDER BY clause recognizes only the columns of the first SELECT query. By default, the first column of the first SELECT query is used to sort the output in an ascending order. Using the ORDER BY Clause in Set Operations
- The ORDER BY clause can appear only once at the end of the compound query.
- Component queries cannot have individual ORDER BY clauses.
- The ORDER BY clause recognizes only the columns of the first SELECT query.
- By default, the first column of the first SELECT query is used to sort the output in an ascending order.
Question 2
Which statement is true regarding external tables?
- The CREATE TABLE AS SELECT statement can be used to upload data into a normal table in the database from an external table.
- The data and metadata for an external table are stored outside the database.
- The default REJECT LIMIT for external tables is UNLIMITED.
- ORACLE_LOADER and ORACLE_DATAPUMP have exactly the same functionality when used with an external table.
Correct answer: A
Explanation:
References:https://docs.oracle.com/cd/B28359_01/server.111/b28310/tables013.htm References:
https://docs.oracle.com/cd/B28359_01/server.111/b28310/tables013.htm
Question 3
Which two statements are true regarding roles? (Choose two.)
- A role can be granted to itself.
- A role can be granted to PUBLIC.
- A user can be granted only one role at any point of time.
- The REVOKE command can be used to remove privileges but not roles from other users.
- Roles are named groups of related privileges that can be granted to users or other roles.
Correct answer: BE
Explanation:
References:http://docs.oracle.com/cd/E25054_01/network.1111/e16543/authorization.htm#autoId28 References:
http://docs.oracle.com/cd/E25054_01/network.1111/e16543/authorization.htm#autoId28
