Oracle12cDB字符集ZHS16GBK改为AL32UTF8
一、查看字符集
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SQL> select * from v$version;
BANNER CON_ID
-------------------------------------------------------------------------------- ----------
Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production 0
PL/SQL Release 12.1.0.2.0 - Production 0
CORE 12.1.0.2.0 Production 0
TNS for Linux: Version 12.1.0.2.0 - Production 0
NLSRTL Version 12.1.0.2.0 - Production 0
SQL> select userenv('language') from dual;
USERENV('LANGUAGE')
----------------------------------------------------
AMERICAN_AMERICA.ZHS16GBK
SQL>
SQL> select * from v$nls_parameters;
PARAMETER VALUE CON_ID
------------------------------ ------------------------------ ----------
NLS_LANGUAGE AMERICAN 0
NLS_TERRITORY AMERICA 0
NLS_CURRENCY $ 0
NLS_ISO_CURRENCY AMERICA 0
NLS_NUMERIC_CHARACTERS ., 0
NLS_CALENDAR GREGORIAN 0
NLS_DATE_FORMAT DD-MON-YYYY HH24:MI:SS 0
NLS_DATE_LANGUAGE AMERICAN 0
NLS_CHARACTERSET ZHS16GBK 0
NLS_SORT BINARY 0
NLS_TIME_FORMAT HH.MI.SSXFF AM 0
PARAMETER VALUE CON_ID
------------------------------ ------------------------------ ----------
NLS_TIMESTAMP_FORMAT DD-MON-RR HH.MI.SSXFF AM 0
NLS_TIME_TZ_FORMAT HH.MI.SSXFF AM TZR 0
NLS_TIMESTAMP_TZ_FORMAT DD-MON-RR HH.MI.SSXFF AM TZR 0
NLS_DUAL_CURRENCY $ 0
NLS_NCHAR_CHARACTERSET AL16UTF16 0
NLS_COMP BINARY 0
NLS_LENGTH_SEMANTICS BYTE 0
NLS_NCHAR_CONV_EXCP FALSE 0
19 rows selected.
SQL>
SQL> select * from nls_database_parameters;
PARAMETER VALUE
------------------------------ ------------------------------
NLS_RDBMS_VERSION 12.1.0.2.0
NLS_NCHAR_CONV_EXCP FALSE
NLS_LENGTH_SEMANTICS BYTE
NLS_COMP BINARY
NLS_DUAL_CURRENCY $
NLS_TIMESTAMP_TZ_FORMAT DD-MON-RR HH.MI.SSXFF AM TZR
NLS_TIME_TZ_FORMAT HH.MI.SSXFF AM TZR
NLS_TIMESTAMP_FORMAT DD-MON-RR HH.MI.SSXFF AM
NLS_TIME_FORMAT HH.MI.SSXFF AM
NLS_SORT BINARY
NLS_DATE_LANGUAGE AMERICAN
PARAMETER VALUE
------------------------------ ------------------------------
NLS_DATE_FORMAT DD-MON-RR
NLS_CALENDAR GREGORIAN
NLS_NUMERIC_CHARACTERS .,
NLS_NCHAR_CHARACTERSET AL16UTF16
NLS_CHARACTERSET ZHS16GBK
NLS_ISO_CURRENCY AMERICA
NLS_CURRENCY $
NLS_TERRITORY AMERICA
NLS_LANGUAGE AMERICAN
20 rows selected.二、修改字符集
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.
Total System Global Area 1778384896 bytes
Fixed Size 2925408 bytes
Variable Size 1627393184 bytes
Database Buffers 134217728 bytes
Redo Buffers 13848576 bytes
Database mounted.
SQL> alter session set sql_trace=true;
Session altered.
SQL> alter system enable restricted session;
System altered.
SQL> alter system set job_queue_processes=0;
System altered.
SQL> alter system set aq_tm_processes=0;
System altered.
SQL> alter database open;
Database altered.
SQL> ALTER DATABASE character set INTERNAL_USE AL32UTF8;
Database altered.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
Total System Global Area 1778384896 bytes
Fixed Size 2925408 bytes
Variable Size 1627393184 bytes
Database Buffers 134217728 bytes
Redo Buffers 13848576 bytes
Database mounted.
Database opened.
SQL> select * from nls_database_parameters;
PARAMETER VALUE
------------------------------ ------------------------------
NLS_RDBMS_VERSION 12.1.0.2.0
NLS_NCHAR_CONV_EXCP FALSE
NLS_LENGTH_SEMANTICS BYTE
NLS_COMP BINARY
NLS_DUAL_CURRENCY $
NLS_TIMESTAMP_TZ_FORMAT DD-MON-RR HH.MI.SSXFF AM TZR
NLS_TIME_TZ_FORMAT HH.MI.SSXFF AM TZR
NLS_TIMESTAMP_FORMAT DD-MON-RR HH.MI.SSXFF AM
NLS_TIME_FORMAT HH.MI.SSXFF AM
NLS_SORT BINARY
NLS_DATE_LANGUAGE AMERICAN
PARAMETER VALUE
------------------------------ ------------------------------
NLS_DATE_FORMAT DD-MON-RR
NLS_CALENDAR GREGORIAN
NLS_NUMERIC_CHARACTERS .,
NLS_NCHAR_CHARACTERSET AL16UTF16
NLS_CHARACTERSET AL32UTF8
NLS_ISO_CURRENCY AMERICA
NLS_CURRENCY $
NLS_TERRITORY AMERICA
NLS_LANGUAGE AMERICAN
20 rows selected.分享题目：Oracle12cDB字符集ZHS16GBK改为AL32UTF8
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