单项选择题
Oracle Instance由哪两个部分组成？（）
A. Shared pool和Server process B. Shared pool和Background process C. SGA和user process D. PGA和user process E. SGA和Background process
A. INSTANCE和DATABASE B. SGA和PGA C. SGA和DATABASE D. Server process和Background process E. SGA和Background process
A.CKPT DBWn LGWR PMON SMON B.ARCn CKPT DBWn LGWR SMON C.CJQ0 CKPT DBWn LGWR SMON D.DBWn LGWR PMON RECO SMON E.CKPT DBWn LMON PMON SMON