oracle汉字转换成拼音、五笔等

select ypmc,ch_code(ypmc,'pyCode',1,8) from yk_typk;
第二个参数：码类型（见下图）
第三个参数:从第几位开始截取
第四个参数:截取最大长度

ch_code函数脚本：CREATE OR REPLACE FUNCTION "CH_CODE" (chStr varchar2,
codeType varchar2,
len Integer,
maxLen Integer) RETURN VARCHAR2 IS
ch VARCHAR2(4);
code varchar2(50);
retStr VARCHAR2(100);
BEGIN
for i in 1 .. length(chStr) loop
ch := substr(chStr, i, 1);
if REGEXP_INSTR(ch, '[a-zA-Z0-9]') > 0 or
(REGEXP_INSTR(asciistr(ch), '[\u4E00-\u9FA5]') > 0 and
substr(asciistr(ch), 1, 1) = '\') then
if REGEXP_INSTR(ch, '[a-zA-Z0-9]') > 0 then
retStr := retStr || ch;
else
begin
execute immediate 'select ' || codeType ||
' from pub_characterencoding t where t.hzcode = :1'
into code
using ch;
retStr := retStr || substr(code, 0, len);
exception
when others then
retStr := '';
end;
end if;
end if;
end loop;
return substr(retStr, 0, maxLen);
exception
when others then
return '';
END;pub_characterencoding 表中的数据：点击打开链接 进行下载