READ Free Dumps For Oracle- 1z1-051
Question ID 4771 | Which two statements are true regarding views? (Choose two.) |
Option A | A. A sub query that defines a view cannot include the GROUP BY clause |
Option B | B. A view is created with the sub query having the DISTINCT keyword can be updated |
Option C | C. A Data Manipulation Language (DML) operation can be performed on a view that is created with the sub query having all the NOT NULL columns of a table |
Option D | D. A view that is created with the sub query having the pseudo column ROWNUM keyword cannot be updated |
Correct Answer | C,D |
Question ID 4772 | You work as a database administrator at ABC.com. You study the exhibit carefully. |
Option A | A. It produces an error because the DESC option cannot be used with an expression in the ORDER BY clause |
Option B | B. It executes and produces the required result |
Option C | C. It produces an error because the expression in the ORDER BY clause should also be specified in the SELECT clause |
Option D | D. It produces an error because an expression cannot be used in the ORDER BY clause |
Correct Answer | B |