Which of the following allows dirty reads, nonrepeatable reads and phantom reads to occur?

Which of the following occurs when one transaction reads a changed record that has not been committed to the database?

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

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

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