Oracle中,下列哪个命令用来手工切换日志?( )
A.alter system switch logfile B.alter database switch logfile C.alter system checkpoint D.alter database checkpoint正确答案A
Oracle中,下列哪个命令用来手工切换日志?( )
A.alter system switch logfile B.alter database switch logfile C.alter system checkpoint D.alter database checkpoint正确答案A