Database-Management-System
October 4, 2023Normalization
October 4, 2023Database-Management-System
| Question 107 |
Which of the following scenarios may lead to an irrecoverable error in a database system?
| A transaction writes a data item after it is read by an uncommitted transaction | |
| A transaction reads a data item after it is read by an uncommitted transaction | |
| A transaction reads a data item after it is written by a committed transaction | |
| A transaction reads a data item after it is written by an uncommitted transaction
|
Question 107 Explanation:
Irrecoverable error occurs when a transaction reads a data item after it is written by uncommitted transaction.
Correct Answer: D
Question 107 Explanation:
Irrecoverable error occurs when a transaction reads a data item after it is written by uncommitted transaction.
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