《MYSQL教程MySQL中文漢字轉(zhuǎn)拼音的自定義函數(shù)和使用實(shí)例(首字的首字母)》要點(diǎn)：
本文介紹了MYSQL教程MySQL中文漢字轉(zhuǎn)拼音的自定義函數(shù)和使用實(shí)例(首字的首字母)，希望對(duì)您有用。如果有疑問(wèn)，可以聯(lián)系我們。
MYSQL應(yīng)用fristPinyin ： 此函數(shù)是將一個(gè)中筆墨符串的第一個(gè)漢字轉(zhuǎn)成拼音字母 (例如："中國(guó)人"->Z)
代碼如下:
CREATE FUNCTION `fristPinyin`(P_NAME VARCHAR(255)) RETURNS varchar(255) CHARSET utf8
BEGIN
??? DECLARE V_RETURN VARCHAR(255);
??? SET V_RETURN = ELT(INTERVAL(CONV(HEX(left(CONVERT(P_NAME USING gbk),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');
??? RETURN V_RETURN;
END
pinyin ：此函數(shù)是將一個(gè)中筆墨符串對(duì)應(yīng)拼音母的每個(gè)相連 (例如："中國(guó)人"->ZGR)
代碼如下:
CREATE FUNCTION `pinyin`(P_NAME VARCHAR(255)) RETURNS varchar(255) CHARSET utf8
BEGIN
??? DECLARE V_COMPARE VARCHAR(255);
??? DECLARE V_RETURN VARCHAR(255);
??? DECLARE I INT;
MYSQL應(yīng)用??? SET I = 1;
??? SET V_RETURN = '';
??? while I < LENGTH(P_NAME) do
??????? SET V_COMPARE = SUBSTR(P_NAME, I, 1);
??????? IF (V_COMPARE != '') THEN
??????????? #SET V_RETURN = CONCAT(V_RETURN, ',', V_COMPARE);
??????????? SET V_RETURN = CONCAT(V_RETURN, fristPinyin(V_COMPARE));
??????????? #SET V_RETURN = fristPinyin(V_COMPARE);
??????? END IF;
??????? SET I = I + 1;
??? end while;
MYSQL利用??? IF (ISNULL(V_RETURN) or V_RETURN = '') THEN
??????? SET V_RETURN = P_NAME;
??? END IF;
MYSQL利用??? RETURN V_RETURN;
END
示例：
代碼如下:
mysql> select p.province, fristPinyin(p.province), pinyin(p.province) from province p;
+------------------+-------------------------+--------------------+
| province???????? | fristPinyin(p.province) | pinyin(p.province) |
+------------------+-------------------------+--------------------+
| 北京市?????????? | B?????????????????????? | BJS??????????????? |
| 天津市?????????? | T?????????????????????? | TJS??????????????? |
| 河北省?????????? | H?????????????????????? | HBS??????????????? |
| 山西省?????????? | S?????????????????????? | SXS??????????????? |
| 內(nèi)蒙古自治區(qū)???? | N?????????????????????? | NMGZZQ???????????? |
+------------------+-------------------------+--------------------+
5 rows in set
MYSQL利用?
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