今天用PLSQL的时候通过EXCEL导入数据,发现中文均显示为?
确认是数据库字符集没有设置正常:对比正常的数据库发现NLS_CHARACTERSET为ZHS16GBK
SQL> select name,value$ from props$ where name like 'NLS%';
NAME VALUE$
------------------------------ ----------------------------------------
NLS_LANGUAGE AMERICAN
NLS_TERRITORY AMERICA
NLS_CURRENCY $
NLS_ISO_CURRENCY AMERICA
NLS_NUMERIC_CHARACTERS .,
NLS_CHARACTERSET ZHS16GBK
NLS_CALENDAR GREGORIAN
NLS_DATE_FORMAT DD-MON-RR
NLS_DATE_LANGUAGE AMERICAN
NLS_SORT BINARY
NLS_TIME_FORMAT HH.MI.SSXFF AM
NAME VALUE$
------------------------------ ----------------------------------------
NLS_TIMESTAMP_FORMAT DD-MON-RR HH.MI.SSXFF AM
NLS_TIME_TZ_FORMAT HH.MI.SSXFF AM TZR
NLS_TIMESTAMP_TZ_FORMAT DD-MON-RR HH.MI.SSXFF AM TZR
NLS_DUAL_CURRENCY $
NLS_COMP BINARY
NLS_LENGTH_SEMANTICS BYTE
NLS_NCHAR_CONV_EXCP FALSE
NLS_NCHAR_CHARACTERSET AL16UTF16
NLS_RDBMS_VERSION 10.2.0.4.0
网上提供的方式是直接update这个列的值,但update以后
SQL> update props$ set value$='AL32UTF8' where name='NLS_CHARACTERSET';
查看一下当前数据库的字符集信息,虽然视图显示修改成功了。但
SQL> col value for a40
SQL> Select * from NLS_DATABASE_PARAMETERS;
PARAMETER VALUE
------------------------------ ----------------------------------------
NLS_LANGUAGE AMERICAN
NLS_TERRITORY AMERICA
NLS_CURRENCY $
NLS_ISO_CURRENCY AMERICA
NLS_NUMERIC_CHARACTERS .,
NLS_CHARACTERSET AL32UTF8
NLS_CALENDAR GREGORIAN
NLS_DATE_FORMAT DD-MON-RR
NLS_DATE_LANGUAGE AMERICAN
NLS_SORT BINARY
NLS_TIME_FORMAT HH.MI.SSXFF AM
PARAMETER VALUE
------------------------------ ----------------------------------------
NLS_TIMESTAMP_FORMAT DD-MON-RR HH.MI.SSXFF AM
NLS_TIME_TZ_FORMAT HH.MI.SSXFF AM TZR
NLS_TIMESTAMP_TZ_FORMAT DD-MON-RR HH.MI.SSXFF AM TZR
NLS_DUAL_CURRENCY $
NLS_COMP BINARY
NLS_LENGTH_SEMANTICS BYTE
NLS_NCHAR_CONV_EXCP FALSE
NLS_NCHAR_CHARACTERSET AL16UTF16
NLS_RDBMS_VERSION 11.2.0.1.0
进行DDL等操作的时候会出现ORA-06553: PLS-553 的错误提示:
CM-CFG-5029 Content Manager is unable to determine whether the content store is initialized.
ORA-06552: PL/SQL: Compilation unit analysis terminated
ORA-06553: PLS-553: character set name is not recognized
可以判断是字符集冲突导致的,查看
ALTER DATABASE CHARACTER SET ZHS16GBK;
ALTER DATABASE CHARACTER SET INTERNAL_USE ZHS16GBK;
修改的时候还遇到一个错误提示:
ERROR at line 1:
ORA-12719: operation requires database is in RESTRICTED mode
[oracle@021Y-SH-BKAP ~]$ oerr ora 12719
12719, 00000, "operation requires database is in RESTRICTED mode"
// *Cause: This command can only be run when the database is in RESTRICTED mode
// *Action: Ensure that the system is in RESTRICTED mode
解决方式:
SHUTDOWN IMMEDIATE;
STARTUP MOUNT EXCLUSIVE;
ALTER SYSTEM ENABLE RESTRICTED SESSION
确认修改成功后,重启数据库。注意如果是生产环境重启前也要关闭工作计划。
show parameter job_queue_processes;
show parameter aq_tm_processes;
alter database set job_queue_processes=0;