Oracle
1Z0-497 · Question #83
1Z0-497 Question #83: Real Exam Question with Answer & Explanation
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Question
Which two statements are true about the B-tree Index?
Options
- AThe leaf blocks in the index are doubly linked.
- BThe leaf node stores a bitmap for each key value.
- CRows with a NULL value in key columns also have entries in the Index.
- DThe deletion of a row from the table causes a logical deletion in the index leaf block and the space
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