log files

查看数据库中log file信息

SQL> col member format a50
SQL> select group#,status,type,member from v$logfile;

    GROUP# STATUS  TYPE    MEMBER
---------- ------- ------- --------------------------------------------------
         3         ONLINE  D:APPMARYHUORADATAARCERZHANGDBREDO03.LOG
         2         ONLINE  D:APPMARYHUORADATAARCERZHANGDBREDO02.LOG
         1         ONLINE  D:APPMARYHUORADATAARCERZHANGDBREDO01.LOG

SQL> select group#,bytes,members from v$log;

    GROUP#      BYTES    MEMBERS
---------- ---------- ----------
         1   52428800          1
         2   52428800          1
         3   52428800          1

查看日志组文件信息

SQL> set linesize 200
SQL> select * from v$log;

    GROUP#    THREAD#  SEQUENCE#      BYTES  BLOCKSIZE    MEMBERS ARC STATUS           FIRST_CHANGE# FIRST_TIME          NEXT_CHANGE# NEXT_TIME
---------- ---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- ------------------- ------------ -------------------
         1          1         45   52428800        512          2 YES INACTIVE               1545714 2013/07/04 10:05:02      1570213 2013/07/04 10:39:57
         2          1         46   52428800        512          2 NO  CURRENT                1570213 2013/07/04 10:39:57   2.8147E+14
         3          2         39   52428800        512          2 NO  CURRENT                1579090 2013/07/04 12:50:24   2.8147E+14 2013/07/04 12:50:24
         4          2         38   52428800        512          2 YES INACTIVE               1570199 2013/07/04 10:39:54      1570205 2013/07/04 10:39:54

SQL> select 52428800/1024/1024 m from dual;

         M
----------
        50