Oracle
1Z0-071 · Question #197
Which two statements are true regarding views? (Choose two.)
The correct answer is B. The OR REPLACE option is used to change the definition of an existing view without dropping C. Rows cannot be deleted through a view if the view definition contains the DISTINCT keyword. See the full explanation below for the reasoning.
Question
Which two statements are true regarding views? (Choose two.)
Options
- AThe WITH CHECK OPTION constraint can be used in a view definition to restrict the columns
- BThe OR REPLACE option is used to change the definition of an existing view without dropping
- CRows cannot be deleted through a view if the view definition contains the DISTINCT keyword.
- DRows added through a view are deleted from the table automatically when the view is dropped.
- EA simple view in which column aliases have been used cannot be updated.
- FA subquery used in a complex view definition cannot contain group functions or joins.
How the community answered
(56 responses)- A4% (2)
- B75% (42)
- D7% (4)
- E2% (1)
- F13% (7)
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