oracle 12cr1 一些需要额外注意的设置

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rdbms

SQL> alter system set "_allow_level_without_connect_by"=true scope=spfile;

SQL> alter system set statistics_level=all scope=spfile;
alter system set timed_statistics=true scope=spfile;

alter system set db_block_checking=full scope=spfile;
alter system set db_block_checksum=full scope=spfile;
alter system set db_lost_write_protect=full scope=spfile;
alter system set db_ultra_safe=off  scope=spfile;

SQL> alter system set db_recovery_file_dest='/u01/app/oracle/fast_recovery_area' scope=spfile;
SQL> alter system set db_recovery_file_dest_size=4560M;

SQL> startup mount;
SQL> alter database archivelog ;
SQL> alter database flashback on;

asm