一 .?fristPinyin ： 此函數是將一個中文字符串的第一個漢字轉成拼音字母 （例如："中國人"->Z）

CREATE FUNCTION `fristPinyin`(P_NAME VARCHAR(255)) RETURNS varchar(255) CHARSET utf8 BEGINDECLARE 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

二.pinyin ：此函數是將一個中文字符串對應拼音母的每個相連 (例如："中國人"->ZGR)

CREATE FUNCTION `pinyin`(P_NAME VARCHAR(255)) RETURNS varchar(255) CHARSET utf8 BEGINDECLARE V_COMPARE VARCHAR(255);DECLARE V_RETURN VARCHAR(255);DECLARE I INT;SET I = 1;SET V_RETURN = '';while I < LENGTH(P_NAME) doSET 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;IF (ISNULL(V_RETURN) or V_RETURN = '') THENSET V_RETURN = P_NAME;END IF;RETURN V_RETURN; END

示例：

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??????????????? |
| 內蒙古自治區???? | N?????????????????????? | NMGZZQ???????????? |
+------------------+-------------------------+--------------------+
5 rows in set

轉載于:https://www.cnblogs.com/rinack/p/6555483.html

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