oracle 캐릭터셋 설정바꾸기

####################################################
#### .bash_profile 환경변수
    export ORACLE_BASE=/home/oracle
    export ORACLE_HOME=$ORACLE_BASE/oracle/product/10.2.0/db_1
    export ORACLE_SID=ora10
    export LD_LIBRARY_PATH=$ORACLE_HOME/lib
    #export LD_ASSUME_KERNEL=2.4.19
    export PATH=$PATH:$ORACLE_HOME/bin
   
    export NLS_LANG=KOREAN_KOREA.KO16KSC5601       #한글
    export NLS_LANG=KOREAN_KOREA.KO16MSWIN949    #한글(추천:지원캐릭터가 더 많음 -뷃,숖..)
    export NLS_LANG=AMERICAN_AMERICA.UTF8           #유니코드


   
####################################################
#### 캐릭터 셋 설정 확인

    SELECT NAME,VALUE$ FROM PROPS$ WHERE NAME ='NLS_LANGUAGE' OR NAME ='NLS_TERRITORY' OR NAME ='NLS_CHARACTERSET';


####################################################
#### 오라클 캐릭터 셋 변경

    update props$ set VALUE$='UTF-8' where name='NLS_CHARACTERSET';
    update props$ set VALUE$='KO16MSWIN949' where name='NLS_CHARACTERSET';
    update props$ set VALUE$='KO16KSC5601' where name='NLS_CHARACTERSET';
   
    update props$ set VALUE$='KOREAN' where name='NLS_LANGUAGE';
    update props$ set VALUE$='KOREA' where name='NLS_TERRITORY';
   


####################################################
#### 캐릭터 셋 변경후에 확인 사항(필수)

    에러 유형 :
        EXP-00008: ORACLE 오류 6552가 발생했습니다
        ORA-06552: PL/SQL: Compilation unit analysis terminated
        ORA-06553: PLS-553: 알 수 없는 문자 집합 이름입니다


    Problem description
    ===================
    You receive the following error when (re)compiling or calling a piece of pl/sql:
    ORA-06550: line <num>, column <num>: ....
    or
    ORA-06552: PL/SQL: Compilation unit analysis terminated
    followed by
    ORA-06553: PLS-553: character set name is not recognized
  에러 원인 :  character set 이 섞여있음.



    캐릭터셋 확인 쿼리 :
    select distinct(nls_charset_name(charsetid)) CHARACTERSET
, decode(type#, 1, decode(charsetform, 1, 'VARCHAR2', 2, 'NVARCHAR2','UNKOWN')
, 9
, decode(charsetform, 1, 'VARCHAR', 2, 'NCHAR VARYING', 'UNKOWN')
, 96
, decode(charsetform, 1, 'CHAR', 2, 'NCHAR', 'UNKOWN')
, 112
, decode(charsetform, 1, 'CLOB', 2, 'NCLOB', 'UNKOWN')) TYPES_USED_IN
from
sys.col$
where charsetform in (1,2) and type# in (1, 9, 96, 112);

    캐릭터셋 확인 쿼리 결과(잘못된 경우): varchar2가 2개 의 캐릭터셋이 설정되어있음.
        CHARACTERSET                            TYPES_USED_IN
        -----------------------------------------------------
        AL16UTF16                               NCHAR
        AL16UTF16                               NVARCHAR2
        AL16UTF16                               NCLOB
        US7ASCII                                CHAR
        US7ASCII                                VARCHAR2
        WE8DEC                                 VARCHAR2
        US7ASCII                                CLOB
       
       
    캐릭터셋 확인 쿼리 결과(정상인 경우): TYPES_USERD_IN 하나당 하나의 캐릭터셋
        CHARACTERSET                            TYPES_USED_IN
        -----------------------------------------------------
        AL16UTF16                               NCHAR
        AL16UTF16                               NVARCHAR2
        AL16UTF16                               NCLOB
        AL32UTF8                                CHAR
        AL32UTF8                                VARCHAR2
        AL32UTF8                                CLOB





해결방법:

c:\ sqlplus / as sysdba

select * from sys.props$ where name='NLS_CHARACTERSET';

시스템 프로퍼티 변경
update sys.props$ set value$='UTF8' where name='NLS_CHARACTERSET';
update sys.props$ set value$='UTF8' where name='NLS_NCHAR_CHARACTERSET';
update sys.props$ set value$='KOREAN_KOREA.UTF8' where name='NLS_LANGUAGE';
commit;

shutdown immediate;
startup mount/RESTRICT; 둘중하나를 해보고 메세지에 따라 달리 선택해본다.
alter system enable restricted session;
alter system set job_queue_processes=0;
alter system set aq_tm_processes=0;
alter database open;
alter database charcter set internal_use UTF8;
alter database national character set internal_use UTF8;

두번에 걸쳐 반복한다.
shutdown immediate;
startup;


shutdown immediate;
startup;