Access database Updates "latency" behavior

After you recently discovered that the Access database performed an update or delete operation successfully, the data that was executed by the select returned is unchanged. When you open the database, you see that the changes have been made, and when you execute the select again, you see that it works.

Debug Discovery: Access database Update operation has a certain "delay", it will take a certain amount of time to change normally. Did not find the specific reason. Record the temporary use of thread.sleep (1000), to temporarily resolve.