Oracle 10g:Put Database in Archive Log Mode.
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1.Set the parameters. SQL> alter system set log_archive_format='arch_%t_%s_%r.arc' SCOPE=spfile; SQL> alter system set log_archive_dest_1='location=C:\archive' SCOPE=spfile; SQL>alter system set log_archive_start=true scope=spfile; 2.Restart the database. SQL>SHUT IMMEDIATE Database closed. Database dismounted. ORACLE instance shut down. SQL> conn / as sysdba Connected to an idle instance. SQL> startup mount ORACLE instance started. SQL> conn / as sysdba Connected to an idle instance. SQL> startup mount ORACLE instance started. Total System Global Area 612368384 bytes Fixed Size 1250428 bytes Variable Size 171969412 bytes Database Buffers 432013312 bytes Redo Buffers ...