彼得,

排序的行为由NLS_SORT会话参数调节,而比较的行为取决于NLS_COMP参数.你必须有不匹配.

我获得与使用以下参数相同的结果：

sql> SELECT *

2 FROM nls_session_parameters

3 WHERE parameter IN ('NLS_COMP','NLS_SORT');

PARAMETER VALUE

------------------------------ ----------------------------------------

NLS_SORT FRENCH

NLS_COMP BINARY

但是当两者匹配时,结果是一致的：

sql> alter session set nls_comp=LINGUISTIC;

Session altered

sql> select * from (

2 select '000000000000' as x from dual

3 union

4 select '978123456789' as x from dual

5 union

6 select 'B002AACD0A' as x from dual

7 ) /*where x>'000000000000'*/ order by x;

X

------------

B002AACD0A

000000000000

978123456789

sql> select * from (

2 select '000000000000' as x from dual

3 union

4 select '978123456789' as x from dual

5 union

6 select 'B002AACD0A' as x from dual

7 ) where x > '000000000000' order by x;

X

------------

978123456789