oracle 服務基本操作，啟動，停止
lsnrctl start
lsnrctl stop

vncserver license 問題

註冊license

[sql] view plaincopy

    [email protected]:~/VNC-5.0.5-Linux-x86$ sudo ./vnclicense  
    VNC(R) Licensing Utility 5.0.5 (r106461)   
    Built on Mar  4 2013 13:50:05  
    Copyright (C) 2002-2013 RealVNC Ltd.  
    VNC is a registered trademark of RealVNC Ltd. in the U.S. and in other  
    countries.  
    Protected by UK patent 2481870.  
    See http://www.realvnc.com for information on VNC.  
    For third party acknowledgements see:  
    http://www.realvnc.com/products/vnc/documentation/5.0/acknowledgements.txt  
      
    Usage: vnclicense COMMAND  
      
    Commands:  
      -add KEY       Add KEY  
      -remove        Remove the key if there is only one installed  
      -remove N      Remove Nth key shown by "-list"  
      -remove KEY    Remove KEY if it is installed  
      -list          List installed keys  
      -check         Print the number of desktops. Returns 0 if license  
                     installed is valid  


3，新增license key

[sql] view plaincopy

   

[email protected]:~/VNC-5.0.5-Linux-x86$ vnclicense -check  
    No licenses installed.  

[sql] view plaincopy

    [email protected]:~/VNC-5.0.5-Linux-x86$ sudo ./vnclicense -add WHJRK-UXY7V-Q34M9-CZU8L-8KGFA  
    Enterprise license key has been successfully applied.  


Auto-Generated Local Connection
/ as sysdba
systsem-ORA12C


ORA-27101:shared memory realm does not exist
No such file or directory

處理：
$ sqlplus /nolog
SQL> conn / as sysdba
Connected to an idle instance.
SQL> startup
ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file '/home/oracle/app/oracle/product/12.1.0/dbhome_1/dbs/initORA12C.ora'


[

[email protected] dbs]# cd /home/oracle/app/oracle/product/12.1.0/dbhome_1/dbs
[[email protected] dbs]# cp init.ora initORA12C.ora


SQL> startup
ORA-48108: invalid value given for the diagnostic_dest init.ora parameter
ORA-48140: the specified ADR Base directory does not exist [/home/oracle/app/oracle/product/12.1.0/dbhome_1/dbs/<ORACLE_BASE>]
ORA-48187: specified directory does not exist
Linux-x86_64 Error: 2: No such file or directory
Additional information: 1


閱讀 initORA12C.ora 其中有內容如下：
##############################################################################
# Example INIT.ORA file
#
# This file is provided by Oracle Corporation as a starting point for
# customizing the Oracle Database installation for your site.    
#
# NOTE: The values that are used in this file are example values only.
# You may want to adjust those values for your specific requirements.
# You might also consider using the Database Configuration Assistant     
# tool (DBCA) to create a server-side initialization parameter file
# and to size your initial set of tablespaces. See the
# Oracle Database 2 Day DBA guide for more information.
###############################################################################

參考內如，直接啟動dbca，需要vncserver,xhost,vncviewer

貌似沒什麼卵用
修改initORA12C.ora <ORACLE_BASE>,完整內容如下:
db_name='ORCL'
memory_target=1G
processes = 150
audit_file_dest='/home/oracle/app/oracle/admin/orcl/adump'
audit_trail ='db'
db_block_size=8192
db_domain=''
db_recovery_file_dest='/home/oracle/app/oracle/fast_recovery_area'
db_recovery_file_dest_size=2G
diagnostic_dest='/home/oracle/app/oracle'
dispatchers='(PROTOCOL=TCP) (SERVICE=ORCLXDB)'
open_cursors=300
remote_login_passwordfile='EXCLUSIVE'
undo_tablespace='UNDOTBS1'
# You may want to ensure that control files are created on separate physical
# devices
control_files = (ora_control1, ora_control2)
compatible ='11.2.0'

再次啟動
[

[email protected] ~]$ sqlplus /nolog

SQL*Plus: Release 12.1.0.1.0 Production on Mon Oct 12 19:07:43 2015

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

SQL> conn / as sysdba
Connected to an idle instance.
SQL> startup
ORACLE instance started.

Total System Global Area 1068937216 bytes
Fixed Size            2296576 bytes
Variable Size          671089920 bytes
Database Buffers      390070272 bytes
Redo Buffers            5480448 bytes
ORA-00205: error in identifying control file, check alert log for more info


alert log路徑：$ORACLE_BASE/app/oracle/diag/rdbms/orcl/ORA12C/trace/alert_ORA12C.log

相關錯誤：
ORA-00210: cannot open the specified control file
ORA-00202: control file: '/home/oracle/app/oracle/product/12.1.0/dbhome_1/dbs/ora_control2'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
ORA-00210: cannot open the specified control file
ORA-00202: control file: '/home/oracle/app/oracle/product/12.1.0/dbhome_1/dbs/ora_control1'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory



修改 initORA12C.ora
control_files = (/home/oracle/app/oracle/oradata/orcl/control01.ctl)

[[email protected] dbs]$ sqlplus / as sysdba

SQL*Plus: Release 12.1.0.1.0 Production on Mon Oct 12 19:48:18 2015

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

Connected to an idle instance.

SQL> startup
ORACLE instance started.

Total System Global Area 1068937216 bytes
Fixed Size            2296576 bytes
Variable Size          671089920 bytes
Database Buffers      390070272 bytes
Redo Buffers            5480448 bytes
ORA-00201: control file version 12.1.0.0.0 incompatible with ORACLE version
11.2.0.0.0
ORA-00202: control file: '/home/oracle/app/oracle/oradata/orcl/control01.ctl'


SQL>

搞定