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A disadvantage of strictly sequential execution is the low workload for the processor and the short waiting queue.
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The 2-Phase Commit (2PC) protocol is not widely used in commercial DBMS for distributed recovery, as it is considered inefficient and unreliable in distributed environments
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If there isn't enough memory, the process can continue by using more blocks for the outer relation (R)
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"Unrepeatable reads" is a situation where the result of a transaction can be read only once due to other transactions.
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Equivalent execution plans must comply with ACID properties (Atomicity, Consistency, Isolation, Durability) to ensure data consistency.
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SQL queries cannot perform mathematical calculations on data.
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PRIMARY KEY is an integrity constraint.
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T-SQL stands for "Transact-SQL," which is Microsoft's proprietary extension to the SQL language.
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Replicating isolated environments provided by virtual machines is easy
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Transaction management coordinates database operations within transaction contexts.
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