一、sql操作
[oracle@node1 ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Tue Nov 15 15:00:15 2011 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to an idle instance. SQL> startup mount; ORACLE instance started. Total System Global Area 417546240 bytes Fixed Size 2228944 bytes Variable Size 285216048 bytes Database Buffers 121634816 bytes Redo Buffers 8466432 bytes Database mounted. SQL> drop database; drop database * ERROR at line 1: ORA-12719: operation requires database is in RESTRICTED mode SQL> alter system enable restricted session; System altered. SQL> drop database; Database dropped. Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning, Oracle Label Security, OLAP, Data Mining, Oracle Database Vault and Real Application Testing options
二、alert日志内容
Tue Nov 15 15:00:18 2011 Adjusting the default value of parameter parallel_max_servers from 320 to 135 due to the value of parameter processes (150) Starting ORACLE instance (normal) LICENSE_MAX_SESSION = 0 LICENSE_SESSIONS_WARNING = 0 Picked latch-free SCN scheme 3 Using LOG_ARCHIVE_DEST_1 parameter default value as USE_DB_RECOVERY_FILE_DEST Autotune of undo retention is turned on. IMODE=BR ILAT =27 LICENSE_MAX_USERS = 0 SYS auditing is disabled Starting up: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning, Oracle Label Security, OLAP, Data Mining, Oracle Database Vault and Real Application Testing options. ORACLE_HOME = /opt/oracle/product/11.2.0/db_1 System name: Linux Node name: node1.srtcloud.com Release: 2.6.18-238.19.1.el5 Version: #1 SMP Fri Jul 15 07:31:24 EDT 2011 Machine: x86_64 Using parameter settings in server-side spfile /opt/oracle/product/11.2.0/db_1/dbs/spfilet1.ora System parameters with non-default values: processes = 150 memory_target = 400M control_files = "/opt/oracle/oradata/t1/control01.ctl" control_files = "/opt/oracle/fast_recovery_area/t1/control02.ctl" db_block_size = 8192 compatible = "11.2.0.0.0" db_recovery_file_dest = "/opt/oracle/fast_recovery_area" db_recovery_file_dest_size= 4122M undo_tablespace = "UNDOTBS1" remote_login_passwordfile= "EXCLUSIVE" db_domain = "" dispatchers = "(PROTOCOL=TCP) (SERVICE=t1XDB)" local_listener = "LISTENER_T1" audit_file_dest = "/opt/oracle/admin/t1/adump" audit_trail = "DB" db_name = "t1" open_cursors = 300 diagnostic_dest = "/opt/oracle" Tue Nov 15 15:00:22 2011 PMON started with pid=2, OS id=26704 Tue Nov 15 15:00:22 2011 PSP0 started with pid=3, OS id=26706 Tue Nov 15 15:00:23 2011 VKTM started with pid=4, OS id=26708 at elevated priority VKTM running at (1)millisec precision with DBRM quantum (100)ms Tue Nov 15 15:00:23 2011 GEN0 started with pid=5, OS id=26712 Tue Nov 15 15:00:23 2011 DIAG started with pid=6, OS id=26714 Tue Nov 15 15:00:23 2011 DBRM started with pid=7, OS id=26716 Tue Nov 15 15:00:23 2011 DIA0 started with pid=8, OS id=26718 Tue Nov 15 15:00:23 2011 MMAN started with pid=9, OS id=26720 Tue Nov 15 15:00:23 2011 DBW0 started with pid=10, OS id=26722 Tue Nov 15 15:00:23 2011 LGWR started with pid=11, OS id=26724 Tue Nov 15 15:00:23 2011 CKPT started with pid=12, OS id=26726 Tue Nov 15 15:00:23 2011 SMON started with pid=13, OS id=26728 Tue Nov 15 15:00:23 2011 RECO started with pid=14, OS id=26730 Tue Nov 15 15:00:23 2011 MMON started with pid=15, OS id=26732 Tue Nov 15 15:00:23 2011 MMNL started with pid=16, OS id=26734 starting up 1 dispatcher(s) for network address '(ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))'... starting up 1 shared server(s) ... ORACLE_BASE from environment = /opt/oracle Tue Nov 15 15:00:23 2011 ALTER DATABASE MOUNT Successful mount of redo thread 1, with mount id 2578048199 Database mounted in Exclusive Mode Lost write protection disabled Completed: ALTER DATABASE MOUNT Tue Nov 15 15:00:33 2011 drop database ORA-12719 signalled during: drop database... Tue Nov 15 15:00:47 2011 Stopping background process MMNL Stopping background process MMON Starting background process MMON Tue Nov 15 15:00:49 2011 MMON started with pid=15, OS id=26788 Starting background process MMNL Tue Nov 15 15:00:49 2011 MMNL started with pid=16, OS id=26790 ALTER SYSTEM enable restricted session; Tue Nov 15 15:01:06 2011 drop database Deleted file /opt/oracle/oradata/t1/system01.dbf Deleted file /opt/oracle/oradata/t1/sysaux01.dbf Deleted file /opt/oracle/oradata/t1/undotbs01.dbf Deleted file /opt/oracle/oradata/t1/users01.dbf Deleted file /opt/oracle/oradata/t1/redo01.log Deleted file /opt/oracle/oradata/t1/redo02.log Deleted file /opt/oracle/oradata/t1/redo03.log Deleted file /opt/oracle/oradata/t1/temp01.dbf Deleted file /opt/oracle/product/11.2.0/db_1/dbs/snapcf_t1.f Shutting down archive processes Archiving is disabled Create Relation ADR_CONTROL Create Relation ADR_INVALIDATION Create Relation INC_METER_IMPT_DEF Create Relation INC_METER_PK_IMPTS USER (ospid: 26761): terminating the instance Instance terminated by USER, pid = 26761 Tue Nov 15 15:01:18 2011 Deleted file /opt/oracle/oradata/t1/control01.ctl Deleted file /opt/oracle/fast_recovery_area/t1/control02.ctl Completed: drop database Shutting down instance (abort) License high water mark = 1 Tue Nov 15 15:01:32 2011 Instance shutdown complete
三、后续工作
1、清除相关日志trace文件$ORACLE_BASE/diag
2、删除fast_recovery_area文件$ORACLE_BASE/fast_recovery_area
3、删除归档日志(根据配置)
4、删除/etc/oratab中关于该数据库的记录(t1:/opt/oracle/product/11.2.0/db_1:N)
四、补充说明
1、在能够使用dbca删除数据库的情况下，应该选择dbca，这个删除的更加干净
2、dbca删除数据库也需要清理部分文件(如：归档日志)
3、如果对数据库的存储结构比较了解，可以人工关闭数据库后，手工删除相关文件
4、drop database使用于10g及其以上版本
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