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HomeDatabaseMysql TutorialOracle数据日志模式

查看当前数据库日志模式SQLgt; select name,log_mode from v$database; 或SQLgt;archive log list;(该方法需要as sysdba)对于

一、查看当前数据库日志模式
    SQL> select name,log_mode from v$database;  或
    SQL>archive log list;(该方法需要as sysdba)

对于非归档模式的数据库该为归档模式(主要以Oracle 10g为参考)使用以下步骤:
1. SQL> alter system set log_archive_dest_1='location=/oracle/oracle10g/log/archive_log';  //添加日志文件路径
2.关闭数据库
SQL> shutdown immediate

3.启动数据mount状态:
SQL> startup mount;

4、修改数据库为归档模式:
SQL> alter database archivelog;

5、打开数据库,查询:
SQL> alter database open;

修改日志文件命名格式:
SQL> alter system set log_archive_max_processes = 5;
SQL> alter system set log_archive_format = "archive_%t_%s_%r.log" scope=spfile;

修改完成后可以查看日志模式是否修改成功!

特别指出的是在Oracle 9i中还要修改参数log_archive_start = true才能生效,oracle 10g中已经废除了该参数,,所以不需要设置该参数。

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