Question

State true or false: We can use Subqueries inside the from clause

(a) True

(b) False

The question was posed to me in an international level competition.

My enquiry is from Nested Subqueries in division Introduction to Relational Model and Sql of RDBMS

Answer 1

Correct option is (a) True

To explain I would say: SQL allows the use of Subqueries inside the from clause. The subquery used in the from clause must have in its result the attributes that are specified in the select clause.