DB NAME을 변경하는 방법

제품 : ORACLE SERVER
작성날짜 : 2001-05-08
DB NAME을 변경하는 방법 (DB NAME을 RC815UT에서 RC815NEW로 변경)
=============================================================
PURPOSE
DATABASE NAME을 변경하는 방법에 관한 자료이다.
Explanation
DB NAME을 변경하기 전에 변경도중 문제가 되는 부분을 예방하기 위해 DB Full backup을 받아놓는다.(all control, redo log, data files backup)
1. 먼저 변경하고자 하는 DB_NAME을 v$database로 확인한다.
SVRMGR> select name from v$database;
NAME
RC815UT
1 row selected.
2. svrmgrl로 접속한다.
$svrmgrl
SVRMGR> connect internal
3. Check point를 일으킨다.
SVRMGR> alter system switch logfile;
4. Control file을 backup 받는다.
(backup controlfile이 생성되는 곳은 user_dump_dest 이며 ora_1693.trc 파일 형태로 생성된다. -> 가장 최근에 생긴 trace 파일을 vi로 open하면 backup 받은 control file을 확인할 수 있다.)
1) user_dump_test 확인
SVRMGR> show parameter user_dump_dest;
NAME TYPE VALUE
user_dump_dest string /mnt2/data/RC815UT/udump
2) control file backup
SVRMGR> alter database backup controlfile to trace resetlogs;
Statement processed.
3) backup 받은 contol file 확인
$mnt2/data/RC815UT/udump> vi ora_1693.trc
5. DB를 shutdown 한다.(shutdown normal or immediate)
6. 생성한 trace file의 위치를 $ORACLE_HOME/rdbms/log 디렉토리에 copy 한다.
backup 받은 control file을 copy)
$mnt2/data/RC815UT/udump> cp ora_1693.trc $ORACLE_HOME/rdbms/log
7. $ORACLE_HOME/rdbms/log 에 있는 ora_1693.trc 파일을 vi로 open한다.
open한 파일에서 STARTUP MOUNT 가 나오는 줄 앞까지 모두 삭제한다.
그리고 파일 이름을 'ccf.sql'로 저장한다.
8. 'ccf.sql'를 vi로 open하여 아래와 같이 편집한다.
1)
변경전: CREATE CONTROLFILE REUSE DATABASE "RC815UT" NORESETLOGS NOARCHIVELOG
변경후: CREATE CONTROLFILE SET DATABASE "RC815NEW" RESETLOGS NOARCHIVELOG
2)
변경전: # Recovery is required if any of the datafiles are restored backups,
# or if the last shutdown was not normal or immediate.
RECOVER DATABASE USING BACKUP CONTROLFILE
변경후: # Recovery is required if any of the datafiles are restored backups,
# or if the last shutdown was not normal or immediate.
#RECOVER DATABASE USING BACKUP CONTROLFILE
9. 'ccf.sql' 을 저장하고 빠져 나온다.
10. 기존에 있던 control file을 다른 이름으로 변경한다.
(주의: ccf.sql 수행함으로써 새로이 control file이 생성되기 때문에 기존에 존재하는 controlfile은 다른 이름으로 rename 하거나 삭제한다)
기존의 control file rename)
$mnt2/data/RC815UT> mv control01.ctl control001.ctl
11. initSID.ora파일 또는 configSID.ora에서 db_name을 변경한다.
db_name=RC815NEW
12. 'ccf.sql' script를 수행한다.
$cd $ORACLE_HOME/rdbms/log
$svrmgrl
SVRMGR> @ccf
ORACLE instance started.
Total System Global Area 5484772 bytes
Fixed Size 94436 bytes
Variable Size 4816896 bytes
Database Buffers 409600 bytes
Redo Buffers 163840 bytes
Statement processed.
Statement processed.
13. DB name이 변경되었는지 v$database로 확인한다.
SVRMGR> select name from v$database;
NAME
RC815NEW
1 row selected.
14. 기존에 SID명이 기록되어있는 파일들을 수정한다.
$ORACLE_HOME/network/admin/listener.ora 의 SID를 RC815NEW 로 수정
$ORACLE_HOME/network/admin/tnsnames.ora의 SID를 RC815NEW 로 수정
Reference Document
<Note 15390.1>How to Determine and Change DB_NAME or ORACLE_SID
<Note:1018634.102>
<Note:9560.1>

- 기존 데이터베이스를 내릴 수 있을 경우
1. 새로운 디렉토리에 모든 데이터 파일 및 컨트롤 파일 , 리두로그 파일 복사
2. 파라미터 파일에 컨트롤 파일 위치 변경 및 마운트 후 데이터 파일, 리두로그 파일 위치 변경( 기존 파라미터 파일 복사 후 수정)
3. 템프 테이블 스페이스 재생성
4. SID 변경 작업 (9i 에서 SID 변경 답변 참조)
- 기존 데이터베이스를 내릴 수 없을 경우
1. dbca를 통한 데이터 베이스 생성
2. 자료 이전 (exp-> imp , db link를 통한 CTAS)

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                If Me._subFolders Is Nothing Then
                    Try
                        Me._subFolders = New ObservableCollection(Of Folder)
                        Dim di As DirectoryInfo() = Me._folder.GetDirectories()
                        Dim i As Integer
                        For i = 0 To di.Length - 1
                            Dim newFolder As New Folder()
                            newFolder.FullPath = di(i).FullName
                            Me._subFolders.Add(newFolder)
                        Next i
                    Catch ex As Exception
                        System.Diagnostics.Trace.WriteLine(ex.Message)
                    End Try
                End If
                Return Me._subFolders
            End Get
        End Property
    End Class
    Can someone explain what is happening. 
    Thanks Hal

    Did you try to build the application (Project->Build in Visual Studio) ? If the error doesn't go away then and you have no other compilation errors (if you do you need to fix these first), you should replace "FolderExplorer" with the namespace
    in which the Folder class resides. If you haven't explicitly declared a namespace, you will find the name of the default namespace under Project->Properties->Root namespace. Copy the value from this text box to your XAML:
    xmlns:my="clr-namespace:FolderExplorer"
    The default namespace is usually the same as the name of the application by default so if your application is called "FolderExplorer" you should be able to build it.
    If you cannot make it work then please upload a reproducable sample of your issue to OneDrive and post the link to it here for further help.
    Please remember to close your threads by marking helpful posts as answer and then start a new thread if you have a new question.

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