Oracle
1Z0-054 · Question #107
1Z0-054 Question #107: Real Exam Question with Answer & Explanation
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Question
Identify the reason why chained or migrated rows in a table cause performance degradation when you access them.
Options
- Abecause the ROWID changes for these rows
- Bbecause these rows make existing indexes invalid
- Cbecause it is not possible to use indexes to retrieve these rows
- Dbecause retrieving these rows requires more than one data block to be accessed
- Ebecause the rows force queries to use temporary segments while retrieving them
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