Question

Column alias cannot be used in which clause

Answer 1

A column alias is a temporary, alternate name for a column. Aliases are specified in the SELECT clause to name or rename columns so that the result table is clearer or easier to read. Aliases are often used to name a column that is the result of an arithmetic expression or summary function. An alias is one word only.

Answer 2

Explanation:

Primitive data types are predefined types of data, which are supported by the programming language. For example, integer, character, and string are all primitive data types. ... In the Java programming language, non-primitive data types are simply called "objects" because they are created, rather than predefined