题目加载中…
题目加载中…
选择了: database block is in the process of being updated、A previously read database block has been updated but not yet committed、A database block logical read operation is in progress from a used buffer.
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选择了: database block is in the process of being updated、A previously read database block has been updated but not yet committed
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选择了: database block is in the process of being updated、A database block logical read operation is in progress from a used buffer.
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选择了: A database block read physical operation is in progress into a previously used buffer.、A database block physical read operation is in progress into a previously free and empty buffer.、A previously read database block has been updated but not yet committed、A database block logical read operation is in progress from a used buffer.
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选择了: A database block read physical operation is in progress into a previously used buffer.、A database block physical read operation is in progress into a previously free and empty buffer.、A previously read database block has been updated but not yet committed
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选择了: A database block read physical operation is in progress into a previously used buffer.、A database block physical read operation is in progress into a previously free and empty buffer.、A database block logical read operation is in progress from a used buffer.
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选择了: A database block read physical operation is in progress into a previously used buffer.、A database block physical read operation is in progress into a previously free and empty buffer.
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选择了: A database block read physical operation is in progress into a previously used buffer.、A previously read database block has been updated but not yet committed、A database block logical read operation is in progress from a used buffer.
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选择了: A database block read physical operation is in progress into a previously used buffer.、A previously read database block has been updated but not yet committed
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选择了: A database block read physical operation is in progress into a previously used buffer.、A database block logical read operation is in progress from a used buffer.
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