DBI202Xuất hiện trong 1 đề thi
Which of the following statements is false regarding SQL Correlated sub-queries?
Các lựa chọn
AA correlated subquery is not evaluated once for each row processed by the parent statement.
BCorrelated subqueries are used for row-by-row processing.
CEach subquery is executed once for every row of the outer query.
DSubqueries always process the innermost query first and then work outward.