Which of the following makes the transaction permanent in the database?FlashbackCommitViewRollback
Question
Which of the following makes the transaction permanent in the database?
- Flashback
- Commit
- View
- Rollback
Solution
The action that makes the transaction permanent in the database is "Commit".
Here's a step-by-step explanation:
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When you perform a transaction in a database, it involves a series of operations. These operations could be an insert, delete, update, or a select operation.
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These operations, when performed, are not immediately made permanent in the database. They are held in a temporary area known as a buffer.
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The "Commit" command is used to save these changes permanently to the database. Once a transaction is committed, it cannot be rolled back or undone. This is because the database has been updated and the changes are saved to the disk.
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On the other hand, "Rollback" is used to undo transactions that have not yet been saved to the database.
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"Flashback" is a feature that provides a way to view past states of the database, or to return the database to a previous state, without using point-in-time media recovery.
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A "View" is a virtual table based on the result-set of an SQL statement. It contains rows and columns, just like a real table, but it doesn't make any transaction permanent.
So, the correct answer is "Commit".
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