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To identify the deleted records we use the ______________

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To identify the deleted records we use the ______________ (a) Existence bitmap (b) Current bitmap (c) Final bitmap (d) Deleted bitmap This question was posed to me during an internship interview. My question is based upon Bitmap Indices in chapter Indexing and Hashing of Database Management Select the correct answer from above options Interview Questions and Answers, Database Interview Questions and Answers for Freshers and Experience

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Right option is (a) Existence bitmap To explain: The bitmaps which are deleted are denoted by 0.

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