Q88 Examine this SQL 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. (Choose three.)
- (A). ORDER BY “Last Name”
- (B). ORDER BY 2, 1
- (C). ORDER BY 2, cust_id
- (D). ORDER BY CUST_NO
- (E). ORDER BY “CUST_NO”
Xem thêm:
- Q98. Which three are true about RMAN persistent configuration settings, administration, and their effects?
- Q168 After a system crash, an instance restart and an attempted opening of the PDBs result in
- Flashback Oracle database là gì?
- HAProxy là gì?
- Undo trong Oracle database là gì và cách sử dụng?