步骤：
1、创建表结构
-- 创建汉字拼音对照临时表 create table if not exists `t_base_pinyin` ( `pin_yin_` varchar(255) character set gbk not null, `code_` int(11) not null, primary key (`code_`) ) engine=innodb default charset=latin1;
二、插入对照数据
-- 插入数据
insert into t_base_pinyin (pin_yin_,code_) values ("a", 20319),("ai", 20317),("an", 20304),("ang", 20295),("ao", 20292),("ba", 20283),("bai", 20265),("ban", 20257),("bang", 20242),("bao", 20230),("bei", 20051),("ben", 20036),("beng", 20032),("bi", 20026),("bian", 20002),("biao", 19990),("bie", 19986),("bin", 19982),("bing", 19976),("bo", 19805),("bu", 19784),("ca", 19775),("cai", 19774),("can", 19763),("cang", 19756),("cao", 19751),("ce", 19746),("ceng", 19741),("cha", 19739),("chai", 19728),("chan", 19725),("chang", 19715),("chao", 19540),("che", 19531),("chen", 19525),("cheng", 19515),("chi", 19500),("chong", 19484),("chou", 19479),("chu", 19467),("chuai", 19289),("chuan", 19288),("chuang", 19281),("chui", 19275),("chun", 19270),("chuo", 19263),("ci", 19261),("cong", 19249),("cou", 19243),("cu", 19242),("cuan", 19238),("cui", 19235),("cun", 19227),("cuo", 19224),("da", 19218),("dai", 19212),("dan", 19038),("dang", 19023),("dao", 19018),("de", 19006),("deng", 19003),("di", 18996),("dian", 18977),("diao", 18961),("die", 18952),("ding", 18783),("diu", 18774),("dong", 18773),("dou", 18763),("du", 18756),("duan", 18741),("dui", 18735),("dun", 18731),("duo", 18722),("e", 18710),("en", 18697),("er", 18696),("fa", 18526),("fan", 18518),("fang", 18501),("fei", 18490),("fen", 18478),("feng", 18463),("fo", 18448),("fou", 18447),("fu", 18446),("ga", 18239),("gai", 18237),("gan", 18231),("gang", 18220),("gao", 18211),("ge", 18201),("gei", 18184),("gen", 18183),("geng", 18181),("gong", 18012),("gou", 17997),("gu", 17988),("gua", 17970),("guai", 17964),("guan", 17961),("guang", 17950),("gui", 17947),("gun", 17931),("guo", 17928),("ha", 17922),("hai", 17759),("han", 17752),("hang", 17733),("hao", 17730),("he", 17721),("hei", 17703),("hen", 17701),("heng", 17697),("hong", 17692),("hou", 17683),("hu", 17676),("hua", 17496),("huai", 17487),("huan", 17482),("huang", 17468),("hui", 17454),("hun", 17433),("huo", 17427),("ji", 17417),("jia", 17202),("jian", 17185),("jiang", 16983),("jiao", 16970),("jie", 16942),("jin", 16915),("jing", 16733),("jiong", 16708),("jiu", 16706),("ju", 16689),("juan", 16664),("jue", 16657),("jun", 16647),("ka", 16474),("kai", 16470),("kan", 16465),("kang", 16459),("kao", 16452),("ke", 16448),("ken", 16433),("keng", 16429),("kong", 16427),("kou", 16423),("ku", 16419),("kua", 16412),("kuai", 16407),("kuan", 16403),("kuang", 16401),("kui", 16393),("kun", 16220),("kuo", 16216),("la", 16212),("lai", 16205),("lan", 16202),("lang", 16187),("lao", 16180),("le", 16171),("lei", 16169),("leng", 16158),("li", 16155),("lia", 15959),("lian", 15958),("liang", 15944),("liao", 15933),("lie", 15920),("lin", 15915),("ling", 15903),("liu", 15889),("long", 15878),("lou", 15707),("lu", 15701),("lv", 15681),("luan", 15667),("lue", 15661),("lun", 15659),("luo", 15652),("ma", 15640),("mai", 15631),("man", 15625),("mang", 15454),("mao", 15448),("me", 15436),("mei", 15435),("men", 15419),("meng", 15416),("mi", 15408),("mian", 15394),("miao", 15385),("mie", 15377),("min", 15375),("ming", 15369),("miu", 15363),("mo", 15362),("mou", 15183),("mu", 15180),("na", 15165),("nai", 15158),("nan", 15153),("nang", 15150),("nao", 15149),("ne", 15144),("nei", 15143),("nen", 15141),("neng", 15140),("ni", 15139),("nian", 15128),("niang", 15121),("niao", 15119),("nie", 15117),("nin", 15110),("ning", 15109),("niu", 14941),("nong", 14937),("nu", 14933),("nv", 14930),("nuan", 14929),("nue", 14928),("nuo", 14926),("o", 14922),("ou", 14921),("pa", 14914),("pai", 14908),("pan", 14902),("pang", 14894),("pao", 14889),("pei", 14882),("pen", 14873),("peng", 14871),("pi", 14857),("pian", 14678),("piao", 14674),("pie", 14670),("pin", 14668),("ping", 14663),("po", 14654),("pu", 14645),("qi", 14630),("qia", 14594),("qian", 14429),("qiang", 14407),("qiao", 14399),("qie", 14384),("qin", 14379),("qing", 14368),("qiong", 14355),("qiu", 14353),("qu", 14345),("quan", 14170),("que", 14159),("qun", 14151),("ran", 14149),("rang", 14145),("rao", 14140),("re", 14137),("ren", 14135),("reng", 14125),("ri", 14123),("rong", 14122),("rou", 14112),("ru", 14109),("ruan", 14099),("rui", 14097),("run", 14094),("ruo", 14092),("sa", 14090),("sai", 14087),("san", 14083),("sang", 13917),("sao", 13914),("se", 13910),("sen", 13907),("seng", 13906),("sha", 13905),("shai", 13896),("shan", 13894),("shang", 13878),("shao", 13870),("she", 13859),("shen", 13847),("sheng", 13831),("shi", 13658),("shou", 13611),("shu", 13601),("shua", 13406),("shuai", 13404),("shuan", 13400),("shuang", 13398),("shui", 13395),("shun", 13391),("shuo", 13387),("si", 13383),("song", 13367),("sou", 13359),("su", 13356),("suan", 13343),("sui", 13340),("sun", 13329),("suo", 13326),("ta", 13318),("tai", 13147),("tan", 13138),("tang", 13120),("tao", 13107),("te", 13096),("teng", 13095),("ti", 13091),("tian", 13076),("tiao", 13068),("tie", 13063),("ting", 13060),("tong", 12888),("tou", 12875),("tu", 12871),("tuan", 12860) ,("tui", 12858),("tun", 12852),("tuo", 12849),("wa", 12838),("wai", 12831),("wan", 12829),("wang", 12812),("wei", 12802),("wen", 12607),("weng", 12597),("wo", 12594),("wu", 12585),("xi", 12556),("xia", 12359),("xian", 12346),("xiang", 12320),("xiao", 12300),("xie", 12120),("xin", 12099),("xing", 12089),("xiong", 12074),("xiu", 12067),("xu", 12058),("xuan", 12039),("xue", 11867),("xun", 11861),("ya", 11847),("yan", 11831),("yang", 11798),("yao", 11781),("ye", 11604),("yi", 11589),("yin", 11536),("ying", 11358),("yo", 11340),("yong", 11339),("you", 11324),("yu", 11303),("yuan", 11097),("yue", 11077),("yun", 11067),("za", 11055),("zai", 11052),("zan", 11045),("zang", 11041),("zao", 11038),("ze", 11024),("zei", 11020),("zen", 11019),("zeng", 11018),("zha", 11014),("zhai", 10838),("zhan", 10832),("zhang", 10815),("zhao", 10800),("zhe", 10790),("zhen", 10780),("zheng", 10764),("zhi", 10587),("zhong", 10544),("zhou", 10533),("zhu", 10519),("zhua", 10331),("zhuai", 10329),("zhuan", 10328),("zhuang", 10322),("zhui", 10315),("zhun", 10309),("zhuo", 10307),("zi", 10296),("zong", 10281),("zou", 10274),("zu", 10270),("zuan", 10262),("zui", 10260),("zun", 10256),("zuo", 10254);
三、创建汉字转换拼音函数
-- 建立汉字转换拼音函数
drop function if exists to_pinyin;
delimiter $
create function to_pinyin(name varchar(255) charset gbk)
returns varchar(255) charset gbk
begin
declare mycode int;
declare tmp_lcode varchar(2) charset gbk;
declare lcode int;
declare tmp_rcode varchar(2) charset gbk;
declare rcode int;
declare mypy varchar(255) charset gbk default '';
declare lp int;
set mycode = 0;
set lp = 1;
set name = hex(name);
while lp < length(name) do
set tmp_lcode = substring(name, lp, 2);
set lcode = cast(ascii(unhex(tmp_lcode)) as unsigned);
set tmp_rcode = substring(name, lp 2, 2);
set rcode = cast(ascii(unhex(tmp_rcode)) as unsigned);
if lcode > 128 then
set mycode =65536 - lcode * 256 - rcode ;
select concat(mypy,pin_yin_) into mypy from t_base_pinyin where code_ >= abs(mycode) order by code_ asc limit 1;
set lp = lp 4;
else
set mypy = concat(mypy,char(cast(ascii(unhex(substring(name, lp, 2))) as unsigned)));
set lp = lp 2;
end if;
end while;
return lower(mypy);
end;
$
delimiter ;
如果提示错误，在顶部添加一行
set global log_bin_trust_function_creators=true;
四、使用方法
select to_pinyin('测试')
