Oracle
1Z0-061 · Question #321
1Z0-061 Question #321: Real Exam Question with Answer & Explanation
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Question
This statement will fail: create unique bitmap index on employees(department_id,hire_date); Why? (Choose the best answer.)
Options
- ABitmap indexes cannot be unique.
- BThe two columns are of different data types.
- CA bitmap index can be on only one column.
- DThere is already a B*Tree index on DEPARTMENT_ID.
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