oracle 开启关闭归档日志
开启归档，保证log_archive_start=true开启自动归档，否则只能手工归档，关闭了归档，则设置该参数为false注意：如果是OPS/RAC环境，需要先把parallel_server = true注释掉，然后执行如下步骤，最后用这个参数重新启动
1、开启归档
a. 关闭数据库shutdown immediate
b. startup mount
c.>
d.> 2、禁止归档
a. 关闭数据库shutdown immediate
b. startup mount
c.>
d.> 归档信息可以通过如下语句查看
SQL> archive log list
Database log mode Archive Mode
Automatic archival Enabled
Archive destination E:\Oracle\ora92\database\archive
Oldest online log sequence 131
Next log sequence to archive 133
Current log sequence 133
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