Oracle基础 07 参数文件 pfile/spfile

--查看数据库运行模式(spfile还是pfile)
select decode(count(*),1,'spfile','pfile')
from v$spparameter
where rownum=1 and isspecified='TRUE';

--以pfile启动数据库
create pfile='/u01/app/oracle/product/11.2.0/db_1/dbs/initdbtest.ora' from spfile;
shutdown immediate;
startup pfile='/u01/app/oracle/product/11.2.0/db_1/dbs/initdbtest.ora';

--以spfile启动数据库
create spfile from pfile='/u01/app/oracle/product/11.2.0/db_1/dbs/initdbtest.ora';
shutdown immediate;
startup;

--从内存创建spfile或pfile
create spfile from memory
create pfile from memory

此命令在丢失当前参数文件时很方便。在RAC环境中，此命令将捕捉系统中每个实例正在使用的参数值。

--pfile重建
adump ：审计信息
bdump ：后台进程trace 和alert log ,就是说 alert_sid.log也存在这个目录中
cdump ：core trace，一般是用来日志应用程序的除非数据库出了问题否则基本上不会有什么信息
dpdump ：是存放一些登录信息的
udump ：前台手动trace的比如sql trace之后session的trace文件

--10g pfile模板 /u01/app/oracle/admin/test10g/bdump alert_test10.log文件
processes                = 150
sga_target               = 205520896
control_files            = /u01/app/oracle/oradata/test10g/control01.ctl, /u01
/app/oracle/oradata/test10g/control02.ctl, /u01/app/oracle/oradata/test10g/contr
ol03.ctl
db_block_size            = 8192
compatible               = 10.2.0.1.0
log_archive_format       = %t_%s_%r.dbf
db_file_multiblock_read_count= 16
db_recovery_file_dest    = /u01/app/oracle/flash_recovery_area
db_recovery_file_dest_size= 2147483648
undo_management          = AUTO
undo_tablespace          = UNDOTBS1
remote_login_passwordfile= EXCLUSIVE
db_domain                =
dispatchers              = (PROTOCOL=TCP) (SERVICE=test10gXDB)
job_queue_processes      = 10
background_dump_dest     = /u01/app/oracle/admin/test10g/bdump
user_dump_dest           = /u01/app/oracle/admin/test10g/udump
core_dump_dest           = /u01/app/oracle/admin/test10g/cdump
audit_file_dest          = /u01/app/oracle/admin/test10g/adump
db_name                  = test10g
open_cursors             = 300
pga_aggregate_target     = 68157440

--11g pfile模板 /u01/app/oracle/diag/rdbms/test11g/test11g/trace alert_test11g.log文件
processes                = 150
nls_language             = "AMERICAN"
nls_territory            = "AMERICA"
sga_target               = 400M
control_files            = "/u01/app/oracle/oradata/test11g/control01.ctl"
control_files            = "/u01/app/oracle/oradata/test11g/control02.ctl"
control_files            = "/u01/app/oracle/oradata/test11g/control03.ctl"
db_block_size            = 8192
compatible               = "11.2.0"
db_recovery_file_dest    = "$ORACLE_BASE/flash_recovery_area"
db_recovery_file_dest_size= 2G
undo_management          = "AUTO"
undo_tablespace          = "UNDOTBS1"
undo_retention           = 7200
remote_login_passwordfile= "EXCLUSIVE"
db_domain                = ""
dispatchers              = "(PROTOCOL=TCP) (SERVICE=ORCLXDB)"
audit_file_dest          = "/u01/app/oracle/admin/test11g/adump"
audit_trail              = "NONE"
db_name                  = "TEST11G"
open_cursors             = 300
pga_aggregate_target     = 300M
statistics_level         = "typical"
diagnostic_dest          = "/u01/app/oracle"

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Oracle基础 07 参数文件 pfile/spfile

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