如何查看数据库alert日志文件

1、查看 *** 作系统版本

SQL> select from v$version;

BANNER

----------------------------------------------------------------

Oracle Database 10g Enterprise Edition Release 102010 - Prod

PL/SQL Release 102010 - Production

CORE 102010 Production

TNS for Linux: Version 102010 - Production

NLSRTL Version 102010 - Production

SQL>

2、查看预警日志文件（alert_sidlog）的位置

SQL> show parameter dump

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

background_core_dump string partial

background_dump_dest string /u01/oracle/admin/bdump

core_dump_dest string /u01/oracle/admin/cdump

max_dump_file_size string 10240

shadow_core_dump string partial

user_dump_dest string /u01/oracle/admin/udump

3、创建目录alert

注意：directory不是实体，只是一个指向，指向os中一个路径

SQL> create or replace directory alert as '/u01/oracle/admin/bdump';

Directory created

SQL>

4、创建外部表alert

SQL> create table alert

1 (log varchar2(1000))

2 organization external

3 (type oracle_loader

4 default directory alert

5 access parameters

6 (records delimited by newline)

7 location ('alert_PRODlog'))

8 reject limit unlimited;

Table created

5、查看alert中的内容

SQL> select from alert where rownum<20;

LOG

---------------------------------------------------------------------------------------------

Wed Feb 27 11:05:11 2013

Starting ORACLE instance (normal)

Cannot determine all dependent dynamic libraries for /proc/self/exe

Unable to find dynamic library libocr10so in search paths

RPATH = /ade/aime1_build2101/oracle/has/lib/:/ade/aime1_build2101/oracle/lib/:/ade/aime1_build2101/oracle/has/lib/:

LD_LIBRARY_PATH is not set!

The default library directories are /lib and /usr/lib

Unable to find dynamic library libocrb10so in search paths

Unable to find dynamic library libocrutl10so in search paths

Unable to find dynamic library libocrutl10so in search paths

LICENSE_MAX_SESSION = 0

LICENSE_SESSIONS_WARNING = 0

Picked latch-free SCN scheme 2

Using LOG_ARCHIVE_DEST_1 parameter default value as /u01/oracle/product/1020/db_1/dbs/arch

Autotune of undo retention is turned on

IMODE=BR

ILAT =10

LICENSE_MAX_USERS = 0

SYS auditing is disabled

19 rows selected

SQL>

6、看看数据库有哪些 可爱的ORA- 错误吧

SQL> select from alert where log like '%ORA-%';

LOG

---------------------------------------------------------------------------------------------

ORA-959 signalled during: alter database default tablespace users

ORA-959 signalled during: drop tablespace uses

ORA-12919 signalled during: drop tablespace users

ORA-1549 signalled during: drop tablespace users

ORA-1505 signalled during: alter database add logfile group 1

ORA-1184 signalled during: alter database add logfile group 1

ORA-1013 signalled during: alter tablespace tts read only

ORA-1013 signalled during: alter tablespace tts read only

ORA-1013 signalled during: alter tablespace users read only

ORA-1539 signalled during: alter tablespace users read only

1、查看 *** 作系统版本

SQL> select from v$version;

BANNER

----------------------------------------------------------------

Oracle Database 10g Enterprise Edition Release 102010 - Prod

PL/SQL Release 102010 - Production

CORE 102010 Production

TNS for Linux: Version 102010 - Production

NLSRTL Version 102010 - Production

SQL>

2、查看预警日志文件（alert_sidlog）的位置

SQL> show parameter dump

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

background_core_dump string partial

background_dump_dest string /u01/oracle/admin/bdump

core_dump_dest string /u01/oracle/admin/cdump

max_dump_file_size string 10240

shadow_core_dump string partial

user_dump_dest string /u01/oracle/admin/udump

3、创建目录alert

注意：directory不是实体，只是一个指向，指向os中一个路径

SQL> create or replace directory alert as '/u01/oracle/admin/bdump';

Directory created

SQL>

4、创建外部表alert

SQL> create table alert

1 (log varchar2(1000))

2 organization external

3 (type oracle_loader

4 default directory alert

5 access parameters

6 (records delimited by newline)

7 location ('alert_PRODlog'))

8 reject limit unlimited;

Table created

5、查看alert中的内容

SQL> select from alert where rownum<20;

LOG

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Wed Feb 27 11:05:11 2013

Starting ORACLE instance (normal)

Cannot determine all dependent dynamic libraries for /proc/self/exe

Unable to find dynamic library libocr10so in search paths

RPATH = /ade/aime1_build2101/oracle/has/lib/:/ade/aime1_build2101/oracle/lib/:/ade/aime1_build2101/oracle/has/lib/:

LD_LIBRARY_PATH is not set!

The default library directories are /lib and /usr/lib

Unable to find dynamic library libocrb10so in search paths

Unable to find dynamic library libocrutl10so in search paths

Unable to find dynamic library libocrutl10so in search paths

LICENSE_MAX_SESSION = 0

LICENSE_SESSIONS_WARNING = 0

Picked latch-free SCN scheme 2

Using LOG_ARCHIVE_DEST_1 parameter default value as /u01/oracle/product/1020/db_1/dbs/arch

Autotune of undo retention is turned on

IMODE=BR

ILAT =10

LICENSE_MAX_USERS = 0

SYS auditing is disabled

19 rows selected

SQL>

6、看看数据库有哪些 可爱的ORA- 错误吧

SQL> select from alert where log like '%ORA-%';

LOG

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

ORA-959 signalled during: alter database default tablespace users

ORA-959 signalled during: drop tablespace uses

ORA-12919 signalled during: drop tablespace users

ORA-1549 signalled during: drop tablespace users

ORA-1505 signalled during: alter database add logfile group 1

ORA-1184 signalled during: alter database add logfile group 1

ORA-1013 signalled during: alter tablespace tts read only

ORA-1013 signalled during: alter tablespace tts read only

ORA-1013 signalled during: alter tablespace users read only

ORA-1539 signalled during: alter tablespace users read only

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