Oracle9i之前，中文是按照二进制编码进行排序的。在oracle9i中新增了按照拼音、部首、笔画排序功能。

1、设置NLS_SORT参数值
????? SCHINESE_RADICAL_M 按照部首（第一顺序）、笔划（第二顺序）排序
????? SCHINESE_STROKE_M 按照笔划（第一顺序）、部首（第二顺序）排序
????? SCHINESE_PINYIN_M 按照拼音排序

2、Session级别的设置，修改ORACLE字段的默认排序方式：
????? 按拼音：alter session set nls_sort = SCHINESE_PINYIN_M;
????? 按笔画：alter session set nls_sort = SCHINESE_STROKE_M;
????? 按偏旁：alter session set nls_sort = NLS_SORT=SCHINESE_RADICAL_M；

3、语句级别设置排序方式：
????? 按照笔划排序
????? select * from dept order by nlssort(name,'NLS_SORT=SCHINESE_STROKE_M');
????? 按照部首排序
????? select * from dept order by nlssort(name,'NLS_SORT=SCHINESE_RADICAL_M');
????? 按照拼音排序，此为系统的默认排序方式
????? select * from dept order by nlssort(name,'NLS_SORT=SCHINESE_PINYIN_M');

4、修改系统参数（数据库所在操作系统）：
????? set NLS_SORT=SCHINESE_RADICAL_M ;

?????? export NLS_SORT （sh）
?????? setenv NLS_SORT SCHINESE_RADICAL_M (csh)
????? HKLC\SOFTWARE\ORACLE\home0\NLS_SORT (win注册表)

?

?

Oracle 官方说明

NLS_SORT NLS_SORT specifies the collating sequence for ORDER BY queries. NLS_COMP NLS_COMP specifies the collation behavior of the database session.

?

• If the value is BINARY, then the collating sequence for ORDER BY queries is based on the numeric value of characters (a binary sort that requires less system overhead).

• If