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ORACLE 報警日志如何查看？

更新時間：2009年06月25日 00:09:10 作者：

目得：首先了解什么是外部表，與其它表的區(qū)別，建立一個簡單的外部表(主要看操作過程)，最后我們用外部表查看ORACLE報警日志

　　2.　使用外部表查看oracle報警日志

　　由于在上面實驗中已建立了一個用戶,并賦相應(yīng)的權(quán)限,而且也有了OS文件(即報警文件alert_SID.log),所以在此直接建立目錄對象并建立外部表就可以了。

　　1.建立目錄對象

　　 SQL> conn test / 123
　　Connected.
　　SQL> create directory bdump as '/oracle/u01/app/oracle/admin/db2/bdump';
　　Directory created.

　　2.建立外部表

　　 SQL> create table alert_log(
　　text varchar2(400)
　　)organization external
　　(type oracle_loader
　　default directory bdump
　　access parameters
　　(records delimited by newline
　　)location('alert_db2.log')
　　);

3.測試

　　首先查看能否查到alert_db2.log的內(nèi)容

　　SQL> select * from alert_log where rownum < 10;
　　TEXT
　　--------------------------------------------------------------------------------
　　Thu Jun 11 00:51:46 2009
　　Starting ORACLE instance (normal)
　　Cannot determine all dependent dynamic libraries for /proc/self/exe
　　Unable to find dynamic library libocr10.so in search paths
　　RPATH = /ade/aime1_build2101/oracle/has/lib/:/ade/aime1_build2101/oracle/lib/:/a
　　de/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 libocrb10.so in search paths
　　Unable to find dynamic library libocrutl10.so in search paths
　　9 rows selected.

　　測試成功

　　然后我們測試查報警信息'ORA-%'

　　SQL> select * from alert_log where text like 'ORA-%';
　　TEXT
　　--------------------------------------------------------------------------------
　　ORA-00202: control file: '/oracle/u01/app/oracle/product/10.2.0/db2/dbs/cntrldb2
　　.dbf'
　　ORA-27037: unable to obtain file status
　　ORA-205 signalled during: ALTER DATABASE　　　MOUNT...
　　ORA-00301: error in adding log file '/home/oracle/oracle/oradata/testdb/redo01.l
　　og' - file cannot be created
　　ORA-27040: file create error
　　ORA-1501 signalled during: CREATE DATABASE db2
　　ORA-00200: control file could not be created
　　TEXT
　　--------------------------------------------------------------------------------
　　ORA-00202: control file: '/oracle/u01/app/oracle/product/10.2.0/db2/dbs/cntrldb2
　　.dbf'
　　ORA-27038: created file already exists
　　ORA-1501 signalled during: CREATE DATABASE db2
　　ORA-00200: control file could not be created
　　ORA-00202: control file: '/oracle/u01/app/oracle/product/10.2.0/db2/dbs/cntrldb2
　　.dbf'
　　ORA-27038: created file already exists
　　ORA-1501 signalled during: CREATE DATABASE db2

　　測試成功,

　　可見我們可以使用外部表來方便的查看ORACLE的報警信息.

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