Justify the following statement: Concurrent execution of transactions is more important when data must be fetched from
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Justify the following statement: Concurrent execution of transactions is more important when data must be fetched from (slow) disk or when transactions are long, and is less important when data is in memory and transactions are very short.
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If a transaction is very long or when it fetches data from a slow disk it takes a long time to com...View the full answer
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