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>