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The value of the data item prior to the write is called as _________(a) Transaction identifier(b) Data-item identifier(c) Old value(d) New valueThis question was posed to me during an internship interview.My question is from Recovery and Atomicity in section Recovery System of RDBMS |
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Answer» RIGHT answer is (c) Old value To explain I would say: The value of the data item prior to the WRITE is CALLED as old value. This is STORED in the update log record. |
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