Oracle 中对中文字段进行排序通常有三种方式：
1）按笔画排序
select * from Table order by nlssort(columnName,'NLS_SORT=SCHINESE_STROKE_M')
2）按部首排序
select * from Table order by nlssort(columnName,'NLS_SORT=SCHINESE_RADICAL_M')
3）按拼音排序
select * from Table order by nlssort(columnName,'NLS_SORT=SCHINESE_PINYIN_M');
