Locks placed by command are called ________ . Options: A . &nbspimplicit locks B . &nbspexplicit locks C . &nbspexclusive locks D . &nbspshared locks

Locks placed by command are called _______

Question

Locks placed by command are called ________ .

Options:

A . implicit locks

B . explicit locks

C . exclusive locks

D . shared locks

Answer: Option B

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Question 1. 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 2. Which of the following locks the item from change but not from read?....

Question 3. A transaction for which all committed changes are permanent is called:....

Question 4. In this instance, dirty reads are disallowed, while nonrepeatable reads and phantom reads are allowed.....

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

Question 6. 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 7. Which of the following refers to a cursor type where changes of any type and from any source are visible?....

Question 8. Which of the following disallows both dirty reads and nonrepeatable reads, but allows phantom reads?....

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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