单项选择题
A.Locks are acquired on the data.
B.Locks are acquired on index keys.
C.Locks are acquired on index pages.
D.Locks are acquired on index pointers.
单项选择题 If DB2 detects a deadlock between application A and application B (each waiting for a lock held by the other one), what action will DB2 take?（）
单项选择题 If an application issues the same query more than once in the same Unit of Work, which isolation level will not permit this application to see additional rows inserted by other applications?（）
单项选择题 Which of the following best describes how locks are used in DB2?（）