[b]1、查看操作系统版本[/b] SQL> select * from v$version; BANNER ---------------------------------------------------------------- Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod PL/SQL Release 10.2.0.1.0 - Production CORE 10.2.0.1.0 Production TNS for Linux: Version 10.2.0.1.0 - Production NLSRTL Version 10.2.0.1.0 - Production SQL> [b]2、查看预警日志文件（alert_sid.log）的位置[/b] 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 [b]3、创建目录alert[/b] 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> [b]4、创建外部表alert[/b] 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_PROD.log')) 8 reject limit unlimited; Table created. [b]5、查看alert中的内容[/b] 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 libocr10.so 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 libocrb10.so in search paths Unable to find dynamic library libocrutl10.so in search paths Unable to find dynamic library libocrutl10.so 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/10.2.0/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> [b]6、看看数据库有哪些 可爱的ORA- 错误吧[/b] 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...