nlssort排序

ALTER SESSION SET NLS_SORT=''; 排序影响整个会话
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。设置NLS_SORT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
oracle9i中新增了按照拼音、部首、笔画排序功能
拼音 SELECT * FROM TEAM ORDER BY NLSSORT(列名,'NLS_SORT = SCHINESE_PINYIN_M')
笔划 SELECT * FROM TEAM ORDER BY NLSSORT(列名,'NLS_SORT = SCHINESE_STROKE_M')
部首 SELECT * FROM TEAM ORDER BY NLSSORT(列名,'NLS_SORT = SCHINESE_RADICAL_M')
忽略大小写：SELECT * FROM TEAM ORDER BY NLSSORT(列名,'NLS_SORT =BINARY_CI') 

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) 

     <select id="EquipmentList" parameterType="java.util.HashMap" resultMap="resultSimDevInfoMap">
         select * from
         (
             select A.*,rownum RN from
             (
               SELECT t.dev_id,t.dev_name,t.mac_addr,t.org_id,get_org_name(t.org_id) org_name FROM bsec_dev_info t
               <where>
                t.IS_ENABLED=1 and t.IS_DELETED = 0
                and t.org_id in (SELECT ORG_ID FROM SYS_ORG  START WITH ORG_ID = (select t.org_id from SYS_USER t where t.user_id=#{userId,jdbcType=NUMERIC}) CONNECT BY PARENT_ID = PRIOR ORG_ID )
                   <if test="devName !='' and devName !=null">
                       and t.dev_name like '%'||#{devName,jdbcType=VARCHAR}||'%'
                   </if>
               </where>
                order by NLSSORT(t.dev_name,'NLS_SORT = SCHINESE_PINYIN_M')
                 ) A
         )
         where RN between #{pagination.startIndex} and #{pagination.endIndex}
     </select>