How to Enable and Disable the archive log

To Disable the Archive Log:

change the following value to false in the init.ora file
log_archive_start=false

shutdown the database:
shutdown immediate

disable the archivelog:
startup mount
alter database noarchivelog;
alter database open;
archive log list;

To Enable the Archive Log:

change the following value to true in the init.ora file
log_archive_start=true

shutdown the database:
shutdown immediate

enable the archivelog:
startup mount
alter database archivelog;
alter database open;
archive log list;
archive log all;

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Sukhwinder Singh