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本文将详细介绍下查看操作系统版本/查看预警日志文件（alert_sid.log）的位置/查看alert中的内容/看看数据库有哪些 可爱的ORA- 错误吧等等，感兴趣的你可以参考下

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>

2、查看预警日志文件（alert_sid.log）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_PROD.log’)) 8 reject limit unlimited; Table created.

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…