请教biti,在如下的命令中:
CREATE DATABASE "oratest"
maxdatafiles 254
maxinstances 8
maxlogfiles 32
character set ZHS16CGB231280
national character set ZHS16CGB231280
DATAFILE '/mini/data/system01.dbf' SIZE 100M AUTOEXTEND ON NEXT 640K
logfile '/mini/data/redo01.log' SIZE 15000K,
'/mini/data/redo02.log' SIZE 15000K,
'/mini/data/redo03.log' SIZE 15000K;
。“logfile”段表示建立了三个log group还是一个log group包含三个log file?