MySQL中文汉字转拼音的自定义函数和使用实例(首字的首字母)
fristPinyin：此函数是将一个中文字符串的第一个汉字转成拼音字母（例如："中国人"->Z）
CREATEFUNCTION`fristPinyin`(P_NAMEVARCHAR(255))RETURNSvarchar(255)CHARSETutf8
BEGIN
DECLAREV_RETURNVARCHAR(255);
SETV_RETURN=ELT(INTERVAL(CONV(HEX(left(CONVERT(P_NAMEUSINGgbk),1)),16,10),
0xB0A1,0xB0C5,0xB2C1,0xB4EE,0xB6EA,0xB7A2,0xB8C1,0xB9FE,0xBBF7,
0xBFA6,0xC0AC,0xC2E8,0xC4C3,0xC5B6,0xC5BE,0xC6DA,0xC8BB,
0xC8F6,0xCBFA,0xCDDA,0xCEF4,0xD1B9,0xD4D1),
'A','B','C','D','E','F','G','H','J','K','L','M','N','O','P','Q','R','S','T','W','X','Y','Z');
RETURNV_RETURN;
ENDpinyin：此函数是将一个中文字符串对应拼音母的每个相连(例如："中国人"->ZGR)
CREATEFUNCTION`pinyin`(P_NAMEVARCHAR(255))RETURNSvarchar(255)CHARSETutf8 BEGIN DECLAREV_COMPAREVARCHAR(255); DECLAREV_RETURNVARCHAR(255); DECLAREIINT;
SETI=1; SETV_RETURN=''; whileI<LENGTH(P_NAME)do SETV_COMPARE=SUBSTR(P_NAME,I,1); IF(V_COMPARE!='')THEN #SETV_RETURN=CONCAT(V_RETURN,',',V_COMPARE); SETV_RETURN=CONCAT(V_RETURN,fristPinyin(V_COMPARE)); #SETV_RETURN=fristPinyin(V_COMPARE); ENDIF; SETI=I+1; endwhile;
IF(ISNULL(V_RETURN)orV_RETURN='')THEN SETV_RETURN=P_NAME; ENDIF;
RETURNV_RETURN; END