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Mohamad Eskandarane Questions
11022 Questions
Before a block of data in main memory can be output to the database, all log records pertaining to data in that block must have been output to stable storage. This is
Database
2022-07-06
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30
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470
The order of log records in the stable storage ____________ as the order in which they were written to the log buffer
Database
2022-07-06
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457
In order to reduce the overhead in retrieving the records from the storage space we use
Database
2022-07-06
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529
A special redo-only log record <Ti , Xj , V1> is written to the log, where V1 is the value being restored to data item Xj during the rollback. These log records are sometimes called
Database
2022-07-06
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472
The current copy of the database is identified by a pointer, called ____________ which is stored on disk
Database
2022-07-06
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519
The log is a sequence of _________ recording all the update activities in the database
Database
2022-07-06
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450
If the database modifications occur while the transaction is still active, the transaction is said to use the __________ modification technique
Database
2022-07-06
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439
A __________ checkpoint is a checkpoint where transactions are allowed to perform updates even while buffer blocks are being written out
Database
2022-07-06
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484
State true or false: Using checkpoints reduces overhead
Database
2022-07-06
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494
We say that a transaction has been ________ when its commit log record has been output to stable storage
Database
2022-07-06
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486
If a transaction does not modify the database until it has committed it is said to use a _______ modification technique
Database
2022-07-06
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524
The value of the data item prior to the write is called as _________
Database
2022-07-06
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509
The unique identifier of the transaction that performed the write operation is called as _______
Database
2022-07-06
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586
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11022
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