alter system set control_files的注意事项

当有多个控制文件时, alter system set control_files语句
alter system set control_files='/oradata/test/control01.ctl', '/oradata/test/control02.ctl', '/oradata/test/control03.ctl' scope=spfile;
注意: 每个控制文件路径加引号, 之间用逗号分隔.

不要写成如下的语句, 否则会出现ora-00202错误
alter system set control_files='/oradata/test/control01.ctl, /oradata/test/control02.ctl, /oradata/test/control03.ctl' scope=spfile;