Oracle中的中文排序方式
测试中文排序的数据库版本:
SQL> select * from v$version;
BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
PL/SQL Release 11.1.0.6.0 - Production
CORE 11.1.0.6.0 Production
TNS for Linux: Version 11.1.0.6.0 - Production
NLSRTL Version 11.1.0.6.0 - Production
2. 创建测试表
create table player (id number(16, 0), name varchar2(30));
3. 检查字符集配置
确认数据库字符集 american_america.AL32UTF8
SQL> select name,value$ from props$;
NAME VALUE$
------------------------------ ------------------------------
DICT.BASE 2
DEFAULT_TEMP_TABLESPACE TEMP
DEFAULT_PERMANENT_TABLESPACE USERS
DEFAULT_EDITION ORA$BASE
Flashback Timestamp TimeZone GMT
TDE_MASTER_KEY_ID
DEFAULT_TBS_TYPE SMALLFILE
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
NLS_TIMESTAMP_FORMAT DDMON-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 11.1.0.6.0
GLOBAL_DB_NAME ORA11G
EXPORT_VIEWS_VERSION 8
WORKLOAD_CAPTURE_MODE
WORKLOAD_REPLAY_MODE
DBTIMEZONE 00:00
32 rows selected.
SQL>
深入确认字符集
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);
确认操作系统字符集设置
[ora11g@bj55 ~]$ export NLS_LANG=american_america.al32utf8
4. 填写测试数据
。。。。
SQL> insert into player values (17, '下午啦');
1 row created.
SQL> insert into player values (20, '八千米死亡线');
SQL> set pagesize 60
SQL> select * from player;
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