試題詳解

複選題
41. Which statement(s) of the view in SQL is(are) true?
(A) SQL views can be used to hide columns and rows only
(B) The SQL statement to create a view is MAKE VIEW
(C) To update an SQL view, the DMBS must be able to associate the column(s) to be update with a particular row in a particular underlying table
(D) One of the purpose of using views is to hide complicated SQL statement
(E) SQL views can be used to hide complicated SQL syntax