A user executes a query on a table. Which process is responsible for reading the user's data stored in the table from the data files into the database buffer cache?
A. user process
B. server process
C. checkpoint (CKPT)
D. system monitor (SMON)
E. database writer (DBWn)
F. process monitor (PMON)
Answer:
B
我怎麼覺得應該是E呀!
有人能告訴我是B的原因嗎?