利用外部表查询alert日志中的ora错误

SQL> show parameter dump

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
background_core_dump                 string      partial
background_dump_dest                 string      /oracle/oracle/diag/rdbms/orcldb/orcldb1/trace
core_dump_dest                       string      /oracle/oracle/diag/rdbms/orcldb/orcldb1/cdump
max_dump_file_size                   string      unlimited
shadow_core_dump                     string      partial
user_dump_dest                       string      /oracle/oracle/diag/rdbms/orcldb/orcldb1/trace

SQL> create directory alert as'/oracle/oracle/diag/rdbms/orcldb/orcldb1/trace';
SQL> grant read,write on directory alert to public;
Grant succeeded.

SQL> desc dba_directories
 Name                                                  Null?    Type
 ----------------------------------------------------- -------- ------------------------------------
 OWNER                                                 NOT NULL VARCHAR2(30)
 DIRECTORY_NAME                                        NOT NULL VARCHAR2(30)
 DIRECTORY_PATH                                                 VARCHAR2(4000)

SQL> col OWNER for a30
SQL> col DIRECTORY_NAME for a30
SQL> col DIRECTORY_PATH for a100
SQL> select * from dba_directories where DIRECTORY_NAME='ALERT';

OWNER                          DIRECTORY_NAME                 DIRECTORY_PATH

SYS                            ALERT                          /oracle/oracle/diag/rdbms/orcldb/orcldb1/trace

SQL> !
[oracle@linux01 ~]$ cd /oracle/oracle/diag/rdbms/orcldb/orcldb1/trace
[oracle@linux01 trace]$ ls
alert_orcldb1.log             orcldb1_gen0_4646.trc   orcldb1_lms0_4701.trm  orcldb1_p000_4882.trc  orcldb1_rsmn_4802.trm
orcldb1_asmb_4737.trc         orcldb1_gen0_4646.trm   orcldb1_lms1_4666.trc  orcldb1_p000_4882.trm  orcldb1_vkrm_10819.trc
orcldb1_asmb_4737.trm         orcldb1_j000_22025.trc  orcldb1_lms1_4666.trm  orcldb1_p001_4884.trc  orcldb1_vkrm_10819.trm
orcldb1_cjq0_4949.trc         orcldb1_j000_22025.trm  orcldb1_lms1_4705.trc  orcldb1_p001_4884.trm  orcldb1_vkrm_18720.trc
orcldb1_cjq0_4949.trm         orcldb1_j005_4968.trc   orcldb1_lms1_4705.trm  orcldb1_p002_4886.trc  orcldb1_vkrm_18720.trm
orcldb1_dbrm_4650.trc         orcldb1_j005_4968.trm   orcldb1_mark_4747.trc  orcldb1_p002_4886.trm  orcldb1_vkrm_18893.trc
orcldb1_dbrm_4650.trm         orcldb1_lck0_4787.trc   orcldb1_mark_4747.trm  orcldb1_ping_4685.trc  orcldb1_vkrm_18893.trm
orcldb1_dbrm_4683.trc         orcldb1_lck0_4787.trm   orcldb1_mman_4715.trc  orcldb1_ping_4685.trm  orcldb1_vktm_4675.trc
orcldb1_dbrm_4683.trm         orcldb1_lmd0_4695.trc   orcldb1_mman_4715.trm  orcldb1_q001_4912.trc  orcldb1_vktm_4675.trm
orcldb1_dbw0_4717.trc         orcldb1_lmd0_4695.trm   orcldb1_mmon_4690.trc  orcldb1_q001_4912.trm  orcldb1_w000_17178.trc
orcldb1_dbw0_4717.trm         orcldb1_lmhb_4711.trc   orcldb1_mmon_4690.trm  orcldb1_qmnc_4908.trc  orcldb1_w000_17178.trm
orcldb1_dia0_4691_base_1.trc  orcldb1_lmhb_4711.trm   orcldb1_mmon_4739.trc  orcldb1_qmnc_4908.trm  orcldb1_w001_20637.trc
orcldb1_dia0_4691_base_1.trm  orcldb1_lmon_4693.trc   orcldb1_mmon_4739.trm  orcldb1_rcbg_4906.trc  orcldb1_w001_20637.trm
orcldb1_dia0_4691.trc         orcldb1_lmon_4693.trm   orcldb1_ora_4610.trc   orcldb1_rcbg_4906.trm
orcldb1_dia0_4691.trm         orcldb1_lms0_4662.trc   orcldb1_ora_4610.trm   orcldb1_rms0_4709.trc
orcldb1_diag_4681.trc         orcldb1_lms0_4662.trm   orcldb1_ora_4804.trc   orcldb1_rms0_4709.trm
orcldb1_diag_4681.trm         orcldb1_lms0_4701.trc   orcldb1_ora_4804.trm   orcldb1_rsmn_4802.trc

[oracle@linux01 trace]$ exit
SQL> create table db_alert
  2  (log varchar2(4000))
  3  organization external
  4  (type oracle_loader
  5   default directory alert
  6  access parameters
  7  (records delimited by newline
  8  nobadfile
  9  nodiscardfile
 10  nologfile
 11  )
 12  location ('alert_orcldb1.log'))
 13   reject limit unlimited;

Table created.
SQL>  select * from db_alert where log like '%ORA-%';

LOG

ORA-1109 signalled during: ALTER DATABASE CLOSE NORMAL...
ORA-00313: open failed for members of log group 1 of thread 1
ORA-00313: open failed for members of log group 1 of thread 1
ORA-00313: open failed for members of log group 1 of thread 1
ORA-00313: open failed for members of log group 2 of thread 1
ORA-00313: open failed for members of log group 2 of thread 1
ORA-00313: open failed for members of log group 2 of thread 1
Non critical error ORA-48113 caught while writing to trace file "/oracle/oracle/diag/rdbms/orcldb/orcldb1/trace/orcldb1_dbrm_7968.trc"
Non critical error ORA-48181 caught while writing to trace file "/oracle/oracle/diag/rdbms/orcldb/orcldb1/trace/orcldb1_ora_32461.trc"
Non critical error ORA-48181 caught while writing to trace file "/oracle/oracle/diag/rdbms/orcldb/orclMon Mar 21 21:59:57 2016

10 rows selected.