Which of the following locks the item from change but not from read? Options: A . &nbspExplicit lock B . &nbspExclusive lock C . &nbspShared lock D . &nbspImplicit lock

Which of the following locks the item from change but not from read?

Question

Which of the following locks the item from change but not from read?

Options:

A . Explicit lock

B . Exclusive lock

C . Shared lock

D . Implicit lock

Answer: Option C

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Question 1. A transaction for which all committed changes are permanent is called:....

Question 2. Which of the following occurs when a transaction rereads data and finds new rows that were inserted by a command transac....were inserted by a command transaction since the prior read?

Question 3. Which of the following occurs when a transaction rereads data it has previously read and finds modification or deletions....and finds modification or deletions caused by a committed transaction?

Question 4. Which of the following refers to a cursor type where changes of any type and from any source are visible?....

Question 5. The advantage of optimistic locking is that:....

Question 6. Which of the following disallows both dirty reads and nonrepeatable reads, but allows phantom reads?....

Question 7. Which of the following refers to a cursor type that when the cursor is opened, a primary key value is saved for each row....is used to fetch the current values of the row?

Question 8. A cursor type in which the application can only move forward through the recordset is called:....

Question 9. Dirty read, nonrepeatable, and phantom reads are not possible in this instance.....

Question 10. A transaction in which either all of the database actions occur or none of them do is called:....

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