4. Oracle redo log file management

1. Inquire about Oracle Archived information for , If it is not in archive mode, change it to archive mode

archive log list

2. Set two archive paths , In a D disc , In a E disc

alter system set log_archive_dest_1='location=D:\Oracletest';

alter system set log_archive_dest_2='location=E:\';

3. Create a redo log file group , File storage ：D:\Oracletest
   Query existing log groups ：

select group#,sequence#,members,status from v$log;

Add a new log group ：

alter database add logfile ('D:\Oracletest\redo04a.log') size 10m;

Query existing log groups ：

select group#,sequence#,members,status from v$log;

4. Add members for the second redo log file group redo02b.log

alter database add logfile member 'D:\app\Snakewood\oradata\orcl\redo02b.log' to group 2;

5. take current The redo log file of the status is moved to D:\Oracletest
   Query log group status ：

select group#, sequence#, members, status from v$log;

alter database rename file'D:\app\Snakewood\oradata\orcl\redo01.log' to 'D:\Oracletest\redo01.log';

Shut down and restart the database

Query modification results ：

select * from v$logfile;