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mysql 自定義函數(shù) 如何傳入中文參數(shù)?

NoSql

四季花海 2019-01-29 11:07:18

函數(shù)drop function if exists test1;CREATE FUNCTION test1(str1 VARCHAR(200),str2 VARCHAR(200)) RETURNS VARCHAR (200) CHARSET utf8BEGINRETURN CONCAT(str1,str2);END;sql:select test1('我是','中文');報錯：[SQL]select test1('我是','中文');[Err] 1366 - Incorrect string value: '\xE6\x88\x91\xE6\x98\xAF' for column 'str1' at row 342輸入非中文是可以得到結(jié)果，輸入中文就會報錯，求大神解答是數(shù)據(jù)庫字符編碼問題，改成utf8就可以了貌似不會關(guān)閉問題，隨便來個人送分了

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米脂

TA貢獻1836條經(jīng)驗獲得超3個贊

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849 CREATE FUNCTION `fristPinyin`(P_NAME VARCHAR(255)) RETURNS varchar(255) CHARSET utf8BEGIN 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;ENDpinyin ：此函數(shù)是將一個中文字符串對應(yīng)拼音母的每個相連 (例如："中國人"->ZGR)復(fù)制代碼代碼如下: CREATE FUNCTION `pinyin`(P_NAME VARCHAR(255)) RETURNS varchar(255) CHARSET utf8BEGIN DECLARE V_COMPARE VARCHAR(255); DECLARE V_RETURN VARCHAR(255); DECLARE I INT; 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; IF (ISNULL(V_RETURN) or V_RETURN = '') THEN SET V_RETURN = P_NAME; END IF; RETURN V_RETURN;END 示例：復(fù)制代碼代碼如下: 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

反對回復(fù) 2019-03-15

繁星coding

TA貢獻1797條經(jīng)驗獲得超4個贊

中文看做字符串處理傳入即可。
比如創(chuàng)建hello函數(shù)，傳入'你好'
mysql> CREATE FUNCTION hello (s CHAR(20))
mysql> RETURNS CHAR(50) DETERMINISTIC
-> RETURN CONCAT('Hello, ',s,'!');
Query OK, 0 rows affected (0.00 sec)

mysql> SELECT hello('你好');
+----------------+
| hello('world') |
+----------------+
| 你好! |
+----------------+
1 row in set (0.00 sec)