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Is it compulsory to use aliases in a Select Query in Oracle?
Name NameType(name VARCHAR2(30), surname VARCHAR2(30),
Address AddressType(First_Line VARCHAR2(30), City VARCHAR2(30), Post_Code VARCHAR2(8),
Salary NUMBER)

SELECT City
FROM Manager
Where name like 'Jim';

SELECT m.address.city from Manager m
WHERE m.name.f_name LIKE 'Jim' AND m.name.l_name LIKE 'Smith';

SELECT salary
FROM Manager
WHERE name like 'J%';

SELECT m.Salary
FROM Manager m
WHERE name like 'J%';